x^3-8x^2-84x=0

Simple and best practice solution for x^3-8x^2-84x=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^3-8x^2-84x=0 equation:


Simplifying
x3 + -8x2 + -84x = 0

Reorder the terms:
-84x + -8x2 + x3 = 0

Solving
-84x + -8x2 + x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-84 + -8x + x2) = 0

Factor a trinomial.
x((-6 + -1x)(14 + -1x)) = 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 '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6

Subproblem 3

Set the factor '(14 + -1x)' equal to zero and attempt to solve: Simplifying 14 + -1x = 0 Solving 14 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + -1x = 0 + -14 Combine like terms: 14 + -14 = 0 0 + -1x = 0 + -14 -1x = 0 + -14 Combine like terms: 0 + -14 = -14 -1x = -14 Divide each side by '-1'. x = 14 Simplifying x = 14

Solution

x = {0, -6, 14}

See similar equations:

| -27+5p=-23 | | 2X=7X+15+8 | | x+12x=455 | | 2x-3x-8=-2x-11 | | log(x)+log(x+1)=-2 | | X^2-6x+7x=3+i | | 6x+24=19 | | ln(x)+ln(x+1)=-2 | | 6s=96 | | 2x-8=1x-14 | | -5(4x+1)-3=5(x+4)+3x | | 12x+7=14x-9 | | 10x+2=9x+9 | | -2n+8-4n=6n+68 | | 6X+10(-1-X)=42 | | z^3+3z^2+3z+1=i | | -6(3y-1)-3(2y)=26 | | 5(y-3)-5=-4(-6y+3)-3y | | 3x+6-7=4x-13 | | 7X+3(8-2X)=15 | | 40+0.90x=200 | | 4n-4+3n+1=8+4n+1 | | 4x+14=24+6y | | 80+0.70x=200 | | 13x+9-3=12-4 | | x*200=190 | | 15+a=23 | | 0.9*x=108 | | 0=2x^2+bx-8 | | 0.1*x=9 | | 0.25*x=12 | | 80+0.7x=40+0.9x |

Equations solver categories