3x^3-243x=0

Simple and best practice solution for 3x^3-243x=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^3-243x=0 equation:


Simplifying
3x3 + -243x = 0

Reorder the terms:
-243x + 3x3 = 0

Solving
-243x + 3x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-81 + x2) = 0

Factor a difference between two squares.
3x((9 + x)(-9 + x)) = 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 '(9 + x)' equal to zero and attempt to solve: Simplifying 9 + x = 0 Solving 9 + x = 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 + x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x = 0 + -9 x = 0 + -9 Combine like terms: 0 + -9 = -9 x = -9 Simplifying x = -9

Subproblem 3

Set the factor '(-9 + x)' equal to zero and attempt to solve: Simplifying -9 + x = 0 Solving -9 + x = 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 + x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + x = 0 + 9 x = 0 + 9 Combine like terms: 0 + 9 = 9 x = 9 Simplifying x = 9

Solution

x = {0, -9, 9}

See similar equations:

| 4(x-7)+5=2x-9 | | (cotx)(sinx)= | | 8x+7=37+3x | | 3yx+3yx= | | 10q+8q-136=34-8q | | 12-12x=3x^2 | | 18v-18v= | | -204=-12v | | 8(9x-9)+7=7 | | 10q+8q-136=34-8x | | 58=x*2x | | 2=2t-2 | | 4x^2+16=17x | | 0=70n-(30n+1200) | | -6y+3(y-4)=-27 | | -1(9x+4y-8)= | | 2m^3+6m^2-8m-24=0 | | 4z-42=12z-42 | | 5(a-3)+10=20 | | 1-3(4x-1)=2(6-5x)-2x | | y^6+9y^3+8=0 | | 3z+5=3z+25 | | 4x^3-60x^2+224x=0 | | v=16t^2-2t-6 | | 11m-(4m+5)+6=m-19 | | 3z-10=2z+15 | | H(t)=-16t^2+44t+9 | | x^3-20x^2+56=0 | | x-3y/4=15 | | 12t-20=8t+16 | | 3z-10z=2z+15 | | 108=5x+.5x |

Equations solver categories