x^3+8x^3+15x=0

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Solution for x^3+8x^3+15x=0 equation:


Simplifying
x3 + 8x3 + 15x = 0

Reorder the terms:
15x + x3 + 8x3 = 0

Combine like terms: x3 + 8x3 = 9x3
15x + 9x3 = 0

Solving
15x + 9x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(5 + 3x2) = 0

Ignore the factor 3.

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 '(5 + 3x2)' equal to zero and attempt to solve: Simplifying 5 + 3x2 = 0 Solving 5 + 3x2 = 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 + 3x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3x2 = 0 + -5 3x2 = 0 + -5 Combine like terms: 0 + -5 = -5 3x2 = -5 Divide each side by '3'. x2 = -1.666666667 Simplifying x2 = -1.666666667 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Solution

x = {0}

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