20a^3=-18a^2+18a

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Solution for 20a^3=-18a^2+18a equation:


Simplifying
20a3 = -18a2 + 18a

Reorder the terms:
20a3 = 18a + -18a2

Solving
20a3 = 18a + -18a2

Solving for variable 'a'.

Reorder the terms:
-18a + 18a2 + 20a3 = 18a + -18a2 + -18a + 18a2

Reorder the terms:
-18a + 18a2 + 20a3 = 18a + -18a + -18a2 + 18a2

Combine like terms: 18a + -18a = 0
-18a + 18a2 + 20a3 = 0 + -18a2 + 18a2
-18a + 18a2 + 20a3 = -18a2 + 18a2

Combine like terms: -18a2 + 18a2 = 0
-18a + 18a2 + 20a3 = 0

Factor out the Greatest Common Factor (GCF), '2a'.
2a(-9 + 9a + 10a2) = 0

Factor a trinomial.
2a((-3 + -2a)(3 + -5a)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(-3 + -2a)' equal to zero and attempt to solve: Simplifying -3 + -2a = 0 Solving -3 + -2a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2a = 0 + 3 -2a = 0 + 3 Combine like terms: 0 + 3 = 3 -2a = 3 Divide each side by '-2'. a = -1.5 Simplifying a = -1.5

Subproblem 3

Set the factor '(3 + -5a)' equal to zero and attempt to solve: Simplifying 3 + -5a = 0 Solving 3 + -5a = 0 Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -5a = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -5a = 0 + -3 -5a = 0 + -3 Combine like terms: 0 + -3 = -3 -5a = -3 Divide each side by '-5'. a = 0.6 Simplifying a = 0.6

Solution

a = {0, -1.5, 0.6}

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