9x^3+9x=30x^3

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Solution for 9x^3+9x=30x^3 equation:


Simplifying
9x3 + 9x = 30x3

Reorder the terms:
9x + 9x3 = 30x3

Solving
9x + 9x3 = 30x3

Solving for variable 'x'.

Combine like terms: 9x3 + -30x3 = -21x3
9x + -21x3 = 30x3 + -30x3

Combine like terms: 30x3 + -30x3 = 0
9x + -21x3 = 0

Factor out the Greatest Common Factor (GCF), '3x'.
3x(3 + -7x2) = 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 '(3 + -7x2)' equal to zero and attempt to solve: Simplifying 3 + -7x2 = 0 Solving 3 + -7x2 = 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 + -7x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -7x2 = 0 + -3 -7x2 = 0 + -3 Combine like terms: 0 + -3 = -3 -7x2 = -3 Divide each side by '-7'. x2 = 0.4285714286 Simplifying x2 = 0.4285714286 Take the square root of each side: x = {-0.654653671, 0.654653671}

Solution

x = {0, -0.654653671, 0.654653671}

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