12u^3-9u=0

Simple and best practice solution for 12u^3-9u=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 12u^3-9u=0 equation:


Simplifying
12u3 + -9u = 0

Reorder the terms:
-9u + 12u3 = 0

Solving
-9u + 12u3 = 0

Solving for variable 'u'.

Factor out the Greatest Common Factor (GCF), '3u'.
3u(-3 + 4u2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'u' equal to zero and attempt to solve: Simplifying u = 0 Solving u = 0 Move all terms containing u to the left, all other terms to the right. Simplifying u = 0

Subproblem 2

Set the factor '(-3 + 4u2)' equal to zero and attempt to solve: Simplifying -3 + 4u2 = 0 Solving -3 + 4u2 = 0 Move all terms containing u to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + 4u2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 4u2 = 0 + 3 4u2 = 0 + 3 Combine like terms: 0 + 3 = 3 4u2 = 3 Divide each side by '4'. u2 = 0.75 Simplifying u2 = 0.75 Take the square root of each side: u = {-0.866025404, 0.866025404}

Solution

u = {0, -0.866025404, 0.866025404}

See similar equations:

| (3x-6)/2x=17/3 | | 18w^3-39w^2-20w=0 | | 2(3x-4)=4(2x-9) | | 12x^2-5x^3=0 | | 39p+4=33 | | 3x-6/2x=17/3 | | 9z^2-27z=0 | | f(x)=2x^3-5x^2-x+6 | | 39p+40=33 | | (4y-1)= | | 2x-4=-2x+2 | | 9z^2-27=0 | | 13x-14y=-1 | | 7z+1=10-3z | | 5x=(7x+8) | | 4s-11st=5v-9 | | 6x-8-2x=-6 | | 36t^2+24t=0 | | 4s-11st=5v | | 12x+14+10=80 | | 14y-7=0 | | -0.5x-(5/7)=-0.2 | | 4u-12=0 | | 7(t+4)-3(l+t)=-19 | | 3x-6+4x+2=12 | | -7p+7p= | | (x/6)-(3x/2)=x/12 | | 3(a+3)-1=h(a+3) | | c(c-4)3(c-4)=0 | | 8=72 | | f(-x)=2x-4 | | 21+37=9+3j |

Equations solver categories