x(x+2)-8=0

Simple and best practice solution for x(x+2)-8=0 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+2)-8=0 equation:


Simplifying
x(x + 2) + -8 = 0

Reorder the terms:
x(2 + x) + -8 = 0
(2 * x + x * x) + -8 = 0
(2x + x2) + -8 = 0

Reorder the terms:
-8 + 2x + x2 = 0

Solving
-8 + 2x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-4 + -1x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-4, 2}

See similar equations:

| 2x+(x-8)=46 | | 3+8/n=5 | | 4(5x+4)-8= | | 5x-25=5x+63 | | 3ab(a-ab-4b)= | | -10z+9(4+3z)= | | 6x-19=65 | | -y+91=3y-33 | | 3y-33=2y+3 | | 3y-33=-y+91 | | 0=-1/4x-2 | | 8.44=(3900x+1000)/(3x^2+100) | | 5z-4=5z-11 | | z+44=5z-4 | | 3x^2+18x-39=0 | | -6(2-3x)+2(-3+2)=-2x-8 | | .85x+.6y=.7 | | 0=4x^2+38x+217 | | 2+5I= | | 15/18 | | 189=19+7(13-x) | | (3/x)-(2/x+1)=(4/x) | | 25x+125=20x+110 | | 30.60=x+18.50 | | -750x^2+15000x= | | 26.50=x+18.50 | | x^2-12x+54=0 | | 2k=-15+12k | | x^2=353 | | 5y+8=10y+8 | | -8/3x=-24 | | y+5=-2y-6 |

Equations solver categories