x^3-21x^2+68x=0

Simple and best practice solution for x^3-21x^2+68x=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^3-21x^2+68x=0 equation:


Simplifying
x3 + -21x2 + 68x = 0

Reorder the terms:
68x + -21x2 + x3 = 0

Solving
68x + -21x2 + x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(68 + -21x + x2) = 0

Factor a trinomial.
x((4 + -1x)(17 + -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 '(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 3

Set the factor '(17 + -1x)' equal to zero and attempt to solve: Simplifying 17 + -1x = 0 Solving 17 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + -1x = 0 + -17 Combine like terms: 17 + -17 = 0 0 + -1x = 0 + -17 -1x = 0 + -17 Combine like terms: 0 + -17 = -17 -1x = -17 Divide each side by '-1'. x = 17 Simplifying x = 17

Solution

x = {0, 4, 17}

See similar equations:

| 6.2+x=0.7 | | x-3.5=1.4 | | 5x+(1/2)x=-(11/3) | | 35+3x=4x+14 | | 4z^2-20z+28=3 | | 16-5+x=5+9-1 | | a^2+4a+11=7 | | 3.5x=15 | | -(1/2)k-2k=-(5/4) | | x^4-2x^2-2=0 | | 12+8x-(4x-10)+5x= | | -10ew+6=-7w+-9 | | (m-3)x^2-2mx+m+2=0 | | 28-18=x-19 | | 23x-4(4x-7)=28+7x | | 0=2x-(4/3)x | | 10-2m=3m | | 13x+6=11x-8 | | -6x-27=x^2 | | 12=8x-(4x-10) | | w+4=2w | | 11.42=3.2+7.6v+2.9 | | 9+35x-4x^2=0 | | mx^2+2x-m=0 | | 4(3x+-1)+2x=11 | | 2+6w=3w+20 | | Y=m(x+b) | | 1.76=4a-3.6a | | 21+2k=9k | | ab=8-cfora | | -(7/2)r+1(4/5)r=6(4/5) | | 4v=-12v+32 |

Equations solver categories