4X^3-12X^2-40X=

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Solution for 4X^3-12X^2-40X= equation:


Simplifying
4X3 + -12X2 + -40X = 0

Reorder the terms:
-40X + -12X2 + 4X3 = 0

Solving
-40X + -12X2 + 4X3 = 0

Solving for variable 'X'.

Factor out the Greatest Common Factor (GCF), '4X'.
4X(-10 + -3X + X2) = 0

Factor a trinomial.
4X((-2 + -1X)(5 + -1X)) = 0

Ignore the factor 4.

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 '(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, -2, 5}

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