X^3-2X^2=15X

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Solution for X^3-2X^2=15X equation:


Simplifying
X3 + -2X2 = 15X

Reorder the terms:
-2X2 + X3 = 15X

Solving
-2X2 + X3 = 15X

Solving for variable 'X'.

Reorder the terms:
-15X + -2X2 + X3 = 15X + -15X

Combine like terms: 15X + -15X = 0
-15X + -2X2 + X3 = 0

Factor out the Greatest Common Factor (GCF), 'X'.
X(-15 + -2X + X2) = 0

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

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, -3, 5}

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