18x^3+57x^2-21x=0

Simple and best practice solution for 18x^3+57x^2-21x=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 18x^3+57x^2-21x=0 equation:


Simplifying
18x3 + 57x2 + -21x = 0

Reorder the terms:
-21x + 57x2 + 18x3 = 0

Solving
-21x + 57x2 + 18x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-7 + 19x + 6x2) = 0

Factor a trinomial.
3x((-7 + -2x)(1 + -3x)) = 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 '(-7 + -2x)' equal to zero and attempt to solve: Simplifying -7 + -2x = 0 Solving -7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -2x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -2x = 0 + 7 -2x = 0 + 7 Combine like terms: 0 + 7 = 7 -2x = 7 Divide each side by '-2'. x = -3.5 Simplifying x = -3.5

Subproblem 3

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Solution

x = {0, -3.5, 0.3333333333}

See similar equations:

| (5x^2+9x+9)+(-8x^2-3x+7)-(7x^2-4x-7)= | | 8-1/2r=-6 | | 3/12k+2=11 | | 7-1/9h=32 | | 8-9p=35 | | x+9/4=22x | | x^2+9+8=900 | | 5v+4=8 | | 3x/2-=1 | | 2h+12=76 | | -11+-6a=a+-4 | | 3/2=18/y | | 2/5=w/65 | | 10/q=8/62 | | 9/j=3/16 | | -2x^2+16x-3=0 | | 5x-19=2x+11 | | 12x^4-243=0 | | 5x-2=6x+20 | | 13-6=7 | | 6x+2forx=3 | | 16+y=25 | | -2x^2+10x+11=0 | | 3/4=-6/m | | X-3/y=x | | C=b-box | | PC+qx=r | | 5x^2-20x+8=0 | | -2(-3s+6s)=30-a | | (4x-7)=(2x+13) | | 1-4+3-7= | | -8x^2+10x-3=0 |

Equations solver categories