45q^3-20q=0

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Solution for 45q^3-20q=0 equation:


Simplifying
45q3 + -20q = 0

Reorder the terms:
-20q + 45q3 = 0

Solving
-20q + 45q3 = 0

Solving for variable 'q'.

Factor out the Greatest Common Factor (GCF), '5q'.
5q(-4 + 9q2) = 0

Factor a difference between two squares.
5q((2 + 3q)(-2 + 3q)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor 'q' equal to zero and attempt to solve: Simplifying q = 0 Solving q = 0 Move all terms containing q to the left, all other terms to the right. Simplifying q = 0

Subproblem 2

Set the factor '(2 + 3q)' equal to zero and attempt to solve: Simplifying 2 + 3q = 0 Solving 2 + 3q = 0 Move all terms containing q to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3q = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3q = 0 + -2 3q = 0 + -2 Combine like terms: 0 + -2 = -2 3q = -2 Divide each side by '3'. q = -0.6666666667 Simplifying q = -0.6666666667

Subproblem 3

Set the factor '(-2 + 3q)' equal to zero and attempt to solve: Simplifying -2 + 3q = 0 Solving -2 + 3q = 0 Move all terms containing q to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 3q = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 3q = 0 + 2 3q = 0 + 2 Combine like terms: 0 + 2 = 2 3q = 2 Divide each side by '3'. q = 0.6666666667 Simplifying q = 0.6666666667

Solution

q = {0, -0.6666666667, 0.6666666667}

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