The teacher will be very surprised to see your correct solution 😉
40 2 36 25 2 8 14
--*(x - 2*y) + --*(x - 2*y)*(2*x + y) + --*(2*x + y) - -----*(x - 2*y) - -----*(2*x - y) + 1 = 0
5 5 5 ___ ___
\/ 5 \/ 5
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-168*y/5 - 36*sqrt(5)/5)^2 - 4 * (212/5) * (1 + 113*y^2/5 + 6*y*sqrt(5)) = -848/5 + (-168*y/5 - 36*sqrt(5)/5)^2 - 95824*y^2/25 - 5088*y*sqrt(5)/5
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
sum
/ _______________________________________________________________________________________________ \ _______________________________________________________________________________________________ / _______________________________________________________________________________________________ \ _______________________________________________________________________________________________
| / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\ | / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\
| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/| | 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|
___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------| ___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------|
9*\/ 5 21*re(y) |21*im(y) \ 2 /| \ 2 / 9*\/ 5 21*re(y) |21*im(y) \ 2 /| \ 2 /
------- + -------- + I*|-------- - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + ------- + -------- + I*|-------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
106 53 \ 53 106 / 106 106 53 \ 53 106 / 106
=
/ _______________________________________________________________________________________________ \ / _______________________________________________________________________________________________ \
| / 2 2 / / ___ 2 2 ___ \\| | / 2 2 / / ___ 2 2 ___ \\|
| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| | 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/||
___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------||
9*\/ 5 42*re(y) |21*im(y) \ 2 /| |21*im(y) \ 2 /|
------- + -------- + I*|-------- - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| + I*|-------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
53 53 \ 53 106 / \ 53 106 /
product
/ / _______________________________________________________________________________________________ \ _______________________________________________________________________________________________ \ / / _______________________________________________________________________________________________ \ _______________________________________________________________________________________________ \ | | / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\| | | / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\| | | 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| | | 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| | ___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------|| | ___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------|| |9*\/ 5 21*re(y) |21*im(y) \ 2 /| \ 2 /| |9*\/ 5 21*re(y) |21*im(y) \ 2 /| \ 2 /| |------- + -------- + I*|-------- - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|*|------- + -------- + I*|-------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| \ 106 53 \ 53 106 / 106 / \ 106 53 \ 53 106 / 106 /
=
/ / _______________________________________________________________________________________________ \ _______________________________________________________________________________________________ \ / / _______________________________________________________________________________________________ \ _______________________________________________________________________________________________ \ | | / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\| | | / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\| | | 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| | | 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| | ___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \834*\/ 5 *im(y) + 8450*im(y)*re(y)/ + \-140 - 4225*im (y) + 4225*re (y) + 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------|| | ___ | \/ \834*\/ 5 *im(y) + 8450*im(y)*re(y)/ + \-140 - 4225*im (y) + 4225*re (y) + 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \834*\/ 5 *im(y) + 8450*im(y)*re(y)/ + \-140 - 4225*im (y) + 4225*re (y) + 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------|| | 21*re(y) 9*\/ 5 | 21*im(y) \ 2 /| \ 2 /| |9*\/ 5 21*re(y) |21*im(y) \ 2 /| \ 2 /| -|- -------- - ------- + I*|- -------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|*|------- + -------- + I*|-------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| \ 53 106 \ 53 106 / 106 / \ 106 53 \ 53 106 / 106 /
-(-21*re(y)/53 - 9*sqrt(5)/106 + i*(-21*im(y)/53 + ((-8450*im(y)*re(y) - 834*sqrt(5)*im(y))^2 + (140 - 4225*re(y)^2 + 4225*im(y)^2 - 834*sqrt(5)*re(y))^2)^(1/4)*sin(atan2(-8450*im(y)*re(y) - 834*sqrt(5)*im(y), 140 - 4225*re(y)^2 + 4225*im(y)^2 - 834*sqrt(5)*re(y))/2)/106) + ((834*sqrt(5)*im(y) + 8450*im(y)*re(y))^2 + (-140 - 4225*im(y)^2 + 4225*re(y)^2 + 834*sqrt(5)*re(y))^2)^(1/4)*cos(atan2(-8450*im(y)*re(y) - 834*sqrt(5)*im(y), 140 - 4225*re(y)^2 + 4225*im(y)^2 - 834*sqrt(5)*re(y))/2)/106)*(9*sqrt(5)/106 + 21*re(y)/53 + i*(21*im(y)/53 + ((834*sqrt(5)*im(y) + 8450*im(y)*re(y))^2 + (-140 - 4225*im(y)^2 + 4225*re(y)^2 + 834*sqrt(5)*re(y))^2)^(1/4)*sin(atan2(-8450*im(y)*re(y) - 834*sqrt(5)*im(y), 140 - 4225*re(y)^2 + 4225*im(y)^2 - 834*sqrt(5)*re(y))/2)/106) + ((834*sqrt(5)*im(y) + 8450*im(y)*re(y))^2 + (-140 - 4225*im(y)^2 + 4225*re(y)^2 + 834*sqrt(5)*re(y))^2)^(1/4)*cos(atan2(-8450*im(y)*re(y) - 834*sqrt(5)*im(y), 140 - 4225*re(y)^2 + 4225*im(y)^2 - 834*sqrt(5)*re(y))/2)/106)
/ _______________________________________________________________________________________________ \ _______________________________________________________________________________________________
| / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\
| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|
___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------|
9*\/ 5 21*re(y) |21*im(y) \ 2 /| \ 2 /
x1 = ------- + -------- + I*|-------- - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
106 53 \ 53 106 / 106
/ _______________________________________________________________________________________________ \ _______________________________________________________________________________________________
| / 2 2 / / ___ 2 2 ___ \\| / 2 2 / / ___ 2 2 ___ \\
| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|| 4 / / ___ \ / 2 2 ___ \ |atan2\-8450*im(y)*re(y) - 834*\/ 5 *im(y), 140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/|
___ | \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *sin|---------------------------------------------------------------------------------------------|| \/ \-8450*im(y)*re(y) - 834*\/ 5 *im(y)/ + \140 - 4225*re (y) + 4225*im (y) - 834*\/ 5 *re(y)/ *cos|---------------------------------------------------------------------------------------------|
9*\/ 5 21*re(y) |21*im(y) \ 2 /| \ 2 /
x2 = ------- + -------- + I*|-------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
106 53 \ 53 106 / 106
x2 = i*(((-8450*re(y)*im(y) - 834*sqrt(5)*im(y))^2 + (-4225*re(y)^2 - 834*sqrt(5)*re(y) + 4225*im(y)^2 + 140)^2)^(1/4)*sin(atan2(-8450*re(y)*im(y) - 834*sqrt(5)*im(y, -4225*re(y)^2 - 834*sqrt(5)*re(y) + 4225*im(y)^2 + 140)/2)/106 + 21*im(y)/53) + ((-8450*re(y)*im(y) - 834*sqrt(5)*im(y))^2 + (-4225*re(y)^2 - 834*sqrt(5)*re(y) + 4225*im(y)^2 + 140)^2)^(1/4)*cos(atan2(-8450*re(y)*im(y) - 834*sqrt(5)*im(y), -4225*re(y)^2 - 834*sqrt(5)*re(y) + 4225*im(y)^2 + 140)/2)/106 + 21*re(y)/53 + 9*sqrt(5)/106)