Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x^2+3)/(x^2+1)=2
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Equation -4x+9=-19
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Equation -4x+3=2x
- Equation 3*x^3-27*x=0
- Express {x} in terms of y where:
- 13*x-13*y=-4
- 19*x-20*y=-12
- 12*x+7*y=15
- -2*x-9*y=3
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Identical expressions
- c4=(two *c- eight)* two
- c4 equally (2 multiply by c minus 8) multiply by 2
- c4 equally (two multiply by c minus eight) multiply by two
- c4=(2c-8)2
- c4=2c-82
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Similar expressions
- (b*(-2601*b^4+29800*b^2*c^2+(-10000)*c^4)/400)^2=v^2
- a^4*b^4-9*c^4=(a^2*b^2)^2-(3*c)^2
- c4=(2*c+8)*2
- c^6-10*c^4-5*c^2+50=0
c4=(2*c-8)*2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the right part
We get the answer: c4 = -16 + 4*c
c4 = (2*c-8)*2
Expand brackets in the right part
c4 = 2*c*2-8*2
We get the answer: c4 = -16 + 4*c
The graph
Sum and product of roots
[src]
sum
-16 + 4*re(c) + 4*I*im(c)
$$4 \operatorname{re}{\left(c\right)} + 4 i \operatorname{im}{\left(c\right)} - 16$$
=
-16 + 4*re(c) + 4*I*im(c)
$$4 \operatorname{re}{\left(c\right)} + 4 i \operatorname{im}{\left(c\right)} - 16$$
product
-16 + 4*re(c) + 4*I*im(c)
$$4 \operatorname{re}{\left(c\right)} + 4 i \operatorname{im}{\left(c\right)} - 16$$
=
-16 + 4*re(c) + 4*I*im(c)
$$4 \operatorname{re}{\left(c\right)} + 4 i \operatorname{im}{\left(c\right)} - 16$$
-16 + 4*re(c) + 4*i*im(c)
Rapid solution
[src]
c41 = -16 + 4*re(c) + 4*I*im(c)
$$c_{41} = 4 \operatorname{re}{\left(c\right)} + 4 i \operatorname{im}{\left(c\right)} - 16$$
c41 = 4*re(c) + 4*i*im(c) - 16