x(x-8)=-6

Simple and best practice solution for x(x-8)=-6 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(x-8)=-6 equation:


Simplifying
x(x + -8) = -6

Reorder the terms:
x(-8 + x) = -6
(-8 * x + x * x) = -6
(-8x + x2) = -6

Solving
-8x + x2 = -6

Solving for variable 'x'.

Reorder the terms:
6 + -8x + x2 = -6 + 6

Combine like terms: -6 + 6 = 0
6 + -8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + -8x + -6 + x2 = 0 + -6

Reorder the terms:
6 + -6 + -8x + x2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -8x + x2 = 0 + -6
-8x + x2 = 0 + -6

Combine like terms: 0 + -6 = -6
-8x + x2 = -6

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -6 + 16

Reorder the terms:
16 + -8x + x2 = -6 + 16

Combine like terms: -6 + 16 = 10
16 + -8x + x2 = 10

Factor a perfect square on the left side:
(x + -4)(x + -4) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(x + -4) equal to 3.16227766 and -3.16227766.

Subproblem 1

x + -4 = 3.16227766 Simplifying x + -4 = 3.16227766 Reorder the terms: -4 + x = 3.16227766 Solving -4 + x = 3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.16227766 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.16227766 + 4 x = 3.16227766 + 4 Combine like terms: 3.16227766 + 4 = 7.16227766 x = 7.16227766 Simplifying x = 7.16227766

Subproblem 2

x + -4 = -3.16227766 Simplifying x + -4 = -3.16227766 Reorder the terms: -4 + x = -3.16227766 Solving -4 + x = -3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.16227766 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.16227766 + 4 x = -3.16227766 + 4 Combine like terms: -3.16227766 + 4 = 0.83772234 x = 0.83772234 Simplifying x = 0.83772234

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.16227766, 0.83772234}

See similar equations:

| 3+127=6x+175 | | -3x-5x=8 | | -4p-4p=8 | | 128x=512 | | 3logax+0.5logax= | | 8x+4(x+8)=104 | | -(2t-6)+17=54 | | r^2-37=-10r | | 5x-24=2x+25 | | 25=.5(100-X) | | 10g-9=31 | | 2(y-5)=5(y+6)-16 | | -43=-2 | | -14=4v+11 | | Y=15/8x-3 | | -43=-u/2 | | x^2+14x+8=-32 | | 10.1=logx | | 5x+c=kforx | | (2x+3)(2x-3)=6 | | 5s+5(10)=225 | | -25=4v | | Y=4x-7/4 | | 7(x-3)+7=2x+5(-3+x) | | 4-(-1-7x)^1/3=0 | | 11-4p-14=7p+25-4p | | r^2-12r=-88 | | 3i-2=49 | | 6x^3+3x= | | 4v+11=-14 | | x+1.5-0.5x= | | Z+150+2z+3z=180 |

Equations solver categories