0=x^3+2x^2-8x

Simple and best practice solution for 0=x^3+2x^2-8x 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 0=x^3+2x^2-8x equation:


Simplifying
0 = x3 + 2x2 + -8x

Reorder the terms:
0 = -8x + 2x2 + x3

Solving
0 = -8x + 2x2 + x3

Solving for variable 'x'.
Remove the zero:
8x + -2x2 + -1x3 = -8x + 2x2 + x3 + 8x + -2x2 + -1x3

Reorder the terms:
8x + -2x2 + -1x3 = -8x + 8x + 2x2 + -2x2 + x3 + -1x3

Combine like terms: -8x + 8x = 0
8x + -2x2 + -1x3 = 0 + 2x2 + -2x2 + x3 + -1x3
8x + -2x2 + -1x3 = 2x2 + -2x2 + x3 + -1x3

Combine like terms: 2x2 + -2x2 = 0
8x + -2x2 + -1x3 = 0 + x3 + -1x3
8x + -2x2 + -1x3 = x3 + -1x3

Combine like terms: x3 + -1x3 = 0
8x + -2x2 + -1x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(8 + -2x + -1x2) = 0

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

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

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

Subproblem 3

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 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 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {0, 2, -4}

See similar equations:

| X^4-9x^2=x^3-9x | | h+3=-4 | | ln(x-2)-lnx=ln(x+4) | | (x-7)(3x-3)= | | 4x+2(5x+10)=146 | | 4x^2-13-5=0 | | 4(5x-3)+2(18-2x)=3(5x+2)-5 | | 5(x-18)=20 | | 5+k-5k=4k+6 | | 3z+1+2z-6+90=180 | | 6(6p+6)-5=1+6+p | | -0.10(40)+0.55=0.05(x-20) | | 2z-6=90 | | 3+4.75x=21 | | 4+3s=93 | | 2n^3+4=20 | | 3(x-5)+x=22 | | .72=.08n-.06n | | 3z-9=6z-18 | | 3z-9+6z-18=180 | | 8x+x=36 | | 4p+14=30 | | X^2+2x-99=o | | .85x-0.3=0.55x+3 | | -4+a=0 | | 5x-6x=3-10 | | 5(3y-2)-10y=35 | | -y^2-2y+6=0 | | 8n+20-5n=38 | | 35x-1+46= | | 24=6(-m-3) | | -7x+3[x-7(3-2x)]= |

Equations solver categories