x^3=x(2x+15)

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Solution for x^3=x(2x+15) equation:


Simplifying
x3 = x(2x + 15)

Reorder the terms:
x3 = x(15 + 2x)
x3 = (15 * x + 2x * x)
x3 = (15x + 2x2)

Solving
x3 = 15x + 2x2

Solving for variable 'x'.

Reorder the terms:
-15x + -2x2 + x3 = 15x + 2x2 + -15x + -2x2

Reorder the terms:
-15x + -2x2 + x3 = 15x + -15x + 2x2 + -2x2

Combine like terms: 15x + -15x = 0
-15x + -2x2 + x3 = 0 + 2x2 + -2x2
-15x + -2x2 + x3 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 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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