x^2-10x=8

Simple and best practice solution for x^2-10x=8 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for x^2-10x=8 equation:


Simplifying
x2 + -10x = 8

Reorder the terms:
-10x + x2 = 8

Solving
-10x + x2 = 8

Solving for variable 'x'.

Reorder the terms:
-8 + -10x + x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + -10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -10x + 8 + x2 = 0 + 8

Reorder the terms:
-8 + 8 + -10x + x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -10x + x2 = 0 + 8
-10x + x2 = 0 + 8

Combine like terms: 0 + 8 = 8
-10x + x2 = 8

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = 8 + 25

Reorder the terms:
25 + -10x + x2 = 8 + 25

Combine like terms: 8 + 25 = 33
25 + -10x + x2 = 33

Factor a perfect square on the left side:
(x + -5)(x + -5) = 33

Calculate the square root of the right side: 5.744562647

Break this problem into two subproblems by setting 
(x + -5) equal to 5.744562647 and -5.744562647.

Subproblem 1

x + -5 = 5.744562647 Simplifying x + -5 = 5.744562647 Reorder the terms: -5 + x = 5.744562647 Solving -5 + x = 5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 5.744562647 + 5 Combine like terms: -5 + 5 = 0 0 + x = 5.744562647 + 5 x = 5.744562647 + 5 Combine like terms: 5.744562647 + 5 = 10.744562647 x = 10.744562647 Simplifying x = 10.744562647

Subproblem 2

x + -5 = -5.744562647 Simplifying x + -5 = -5.744562647 Reorder the terms: -5 + x = -5.744562647 Solving -5 + x = -5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -5.744562647 + 5 Combine like terms: -5 + 5 = 0 0 + x = -5.744562647 + 5 x = -5.744562647 + 5 Combine like terms: -5.744562647 + 5 = -0.744562647 x = -0.744562647 Simplifying x = -0.744562647

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.744562647, -0.744562647}

See similar equations:

| 3(a-8)=18 | | iz^2-(4+3i)z+6-4i=0 | | 2x-5=4x+21 | | 3(a-4)/9=2a-12 | | 3x+2y=120 | | s+36=19 | | -11x-4=7 | | -x/2+22=73 | | 7x-5+3x=6x-9 | | 2/3(6x-9)=7/4(x-4)-1/3 | | 3x^2+6x=fuck | | 6x-25=84 | | 12n-7-3n= | | 4(5/10b+10f) | | 13v-9=4 | | 2a^2-5a-3/2a^2-12+18 | | 12z/z^2=36 | | 6k-12=2 | | 4-5v=0 | | 2x+4(-x+7)=-6 | | 5x-9-9x=23 | | 4x+5=5y | | 5X^2-11=84 | | 4x+4=-x-17 | | -.3q-7=-3 | | 17y-9=8 | | y=x/2+4 | | 3x=34+3x | | (5/4)*e=(5/2) | | -(3x-27)=-3(x+9) | | -5+2=12 | | 3x^2+3=7 |

Equations solver categories