3x^3-21x^2-54x=0

Simple and best practice solution for 3x^3-21x^2-54x=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 3x^3-21x^2-54x=0 equation:


Simplifying
3x3 + -21x2 + -54x = 0

Reorder the terms:
-54x + -21x2 + 3x3 = 0

Solving
-54x + -21x2 + 3x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-18 + -7x + x2) = 0

Factor a trinomial.
3x((-2 + -1x)(9 + -1x)) = 0

Ignore the factor 3.

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 '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {0, -2, 9}

See similar equations:

| y-2=-4(x-4) | | 8q^2+26q+15=0 | | 9x+6=6x+42 | | 0.3*30000= | | 2(3x-1)-2(4x+5)=8 | | 6(p-1)=2(1+8p)-6p | | X-50x+49=0 | | -(-8-4r)=5(3+r) | | 2y=12x-1 | | 0.25/3 | | 3.99+3m=1m+.11+5 | | -0.7x+6.95=-0.9x+8.95 | | 3x+3(x+2)=-1+7x | | X-32=-7x | | 13x+10=12x+3 | | 7x-3/4x6 | | 0.25/3=x/3/2 | | 5x-20+3x-4=90 | | 49=6w+w | | 2(1-7n)=-28+n | | 0.25/3=x/1/12 | | -4(x+6)=-16 | | -21+3r=8(1+4r) | | 3w+5x-12y+3w+8x+6y= | | 12y-6y=54 | | 14/z=7/15 | | -8+2r+5-5r=4-2r | | (X+9)(x-10)=0 | | 1/5a-0.2(5a-6) | | -6+4n=1-3n | | (2x^4/5x^6)^3 | | -9(-6u-3v+1)= |

Equations solver categories