Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation x+3=-9*x
-
Equation sin(x)+cos(x)=-1
-
Equation 9x-26=30-5x
-
Equation x^2-5x-6=0
- Express {x} in terms of y where:
- -10*x+16*y=-6
- -11*x+15*y=7
- -1*x+4*y=-10
- -16*x-14*y=-18
-
Identical expressions
- √ eighteen -9x= three
- √18 minus 9x equally 3
- √ eighteen minus 9x equally three
-
Similar expressions
- √18+9x=3
√18-9x=3 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Divide both parts of the equation by (-9*x + 3*sqrt(2))/x
We get the answer: x = -1/3 + sqrt(2)/3
sqrt(18)-9*x = 3
Expand brackets in the left part
sqrt18-9*x = 3
Divide both parts of the equation by (-9*x + 3*sqrt(2))/x
x = 3 / ((-9*x + 3*sqrt(2))/x)
We get the answer: x = -1/3 + sqrt(2)/3
Rapid solution
[src]
___
1 \/ 2
x1 = - - + -----
3 3
$$x_{1} = - \frac{1}{3} + \frac{\sqrt{2}}{3}$$
x1 = -1/3 + sqrt(2)/3
Sum and product of roots
[src]
sum
___ 1 \/ 2 - - + ----- 3 3
$$- \frac{1}{3} + \frac{\sqrt{2}}{3}$$
=
___ 1 \/ 2 - - + ----- 3 3
$$- \frac{1}{3} + \frac{\sqrt{2}}{3}$$
product
___ 1 \/ 2 - - + ----- 3 3
$$- \frac{1}{3} + \frac{\sqrt{2}}{3}$$
=
___ 1 \/ 2 - - + ----- 3 3
$$- \frac{1}{3} + \frac{\sqrt{2}}{3}$$
-1/3 + sqrt(2)/3