8a^3=-14a^2-5a

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Solution for 8a^3=-14a^2-5a equation:


Simplifying
8a3 = -14a2 + -5a

Reorder the terms:
8a3 = -5a + -14a2

Solving
8a3 = -5a + -14a2

Solving for variable 'a'.

Reorder the terms:
5a + 14a2 + 8a3 = -5a + -14a2 + 5a + 14a2

Reorder the terms:
5a + 14a2 + 8a3 = -5a + 5a + -14a2 + 14a2

Combine like terms: -5a + 5a = 0
5a + 14a2 + 8a3 = 0 + -14a2 + 14a2
5a + 14a2 + 8a3 = -14a2 + 14a2

Combine like terms: -14a2 + 14a2 = 0
5a + 14a2 + 8a3 = 0

Factor out the Greatest Common Factor (GCF), 'a'.
a(5 + 14a + 8a2) = 0

Factor a trinomial.
a((5 + 4a)(1 + 2a)) = 0

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 '(5 + 4a)' equal to zero and attempt to solve: Simplifying 5 + 4a = 0 Solving 5 + 4a = 0 Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 4a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 4a = 0 + -5 4a = 0 + -5 Combine like terms: 0 + -5 = -5 4a = -5 Divide each side by '4'. a = -1.25 Simplifying a = -1.25

Subproblem 3

Set the factor '(1 + 2a)' equal to zero and attempt to solve: Simplifying 1 + 2a = 0 Solving 1 + 2a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2a = 0 + -1 2a = 0 + -1 Combine like terms: 0 + -1 = -1 2a = -1 Divide each side by '2'. a = -0.5 Simplifying a = -0.5

Solution

a = {0, -1.25, -0.5}

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