3a^2+5=-8a

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


Simplifying
3a2 + 5 = -8a

Reorder the terms:
5 + 3a2 = -8a

Solving
5 + 3a2 = -8a

Solving for variable 'a'.

Reorder the terms:
5 + 8a + 3a2 = -8a + 8a

Combine like terms: -8a + 8a = 0
5 + 8a + 3a2 = 0

Factor a trinomial.
(5 + 3a)(1 + a) = 0

Subproblem 1

Set the factor '(5 + 3a)' equal to zero and attempt to solve: Simplifying 5 + 3a = 0 Solving 5 + 3a = 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 + 3a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3a = 0 + -5 3a = 0 + -5 Combine like terms: 0 + -5 = -5 3a = -5 Divide each side by '3'. a = -1.666666667 Simplifying a = -1.666666667

Subproblem 2

Set the factor '(1 + a)' equal to zero and attempt to solve: Simplifying 1 + a = 0 Solving 1 + a = 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 + a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + a = 0 + -1 a = 0 + -1 Combine like terms: 0 + -1 = -1 a = -1 Simplifying a = -1

Solution

a = {-1.666666667, -1}

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