x^3+3x^2-40x=

Simple and best practice solution for x^3+3x^2-40x= 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+3x^2-40x= equation: 


Simplifying
x3 + 3x2 + -40x = 0

Reorder the terms:
-40x + 3x2 + x3 = 0

Solving
-40x + 3x2 + x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-40 + 3x + x2) = 0

Factor a trinomial.
x((-8 + -1x)(5 + -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 '(-8 + -1x)' equal to zero and attempt to solve:

Simplifying
-8 + -1x = 0

Solving
-8 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + -1x = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -1x = 0 + 8
-1x = 0 + 8

Combine like terms: 0 + 8 = 8
-1x = 8

Divide each side by '-1'.
x = -8

Simplifying
x = -8

Subproblem 3
Set the factor '(5 + -1x)' equal to zero and attempt to solve:

Simplifying
5 + -1x = 0

Solving
5 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + -1x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -1x = 0 + -5
-1x = 0 + -5

Combine like terms: 0 + -5 = -5
-1x = -5

Divide each side by '-1'.
x = 5

Simplifying
x = 5
Solution
x = {0, -8, 5}

See similar equations:

| (2x+3)=(75-2x) | | 5y-26=-6+9y | | 3(x*x)=243 | | ln(y^2+15)=ln(y+3)+ln(y) | | -x^2-11x-30= | | x^3-3x^2-54x= | | 36b^2+23b-3= | | -x^2-14x-48= | | x^2-24x+24y-144=0 | | 8x^2-x+1=0 | | -2x^3+10x^2+28x= | | 7x+5z=2+4y | | 30v^2+7v-2= | | 9x+8y=-15 | | X=4.5+2.25(1) | | X^2+x=-1.5 | | 4t^2-17=0 | | (2x^2+x-3)+(7x-x^2)-(6x-4)= | | 13x-(8x-2)=47 | | X=-10.5+1.5(1) | | 0.0816=x^2 | | (N-8)(n+2)=0 | | log(4)3x+log(4)2=log(4)24 | | X=-5+2.5(1) | | (-a+3)(a+4)=0 | | U+8=v | | 3n-22=3+8n | | A+5b-2a+9b= | | X=-10.5-1.5(0) | | 5.6(3+4x)-5.8=11 | | X=-10.5-1.5y | | 3n+1-2n+8= |

Equations solver categories