a^2=-40-13a

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Solution for a^2=-40-13a equation:


Simplifying
a2 = -40 + -13a

Solving
a2 = -40 + -13a

Solving for variable 'a'.

Reorder the terms:
40 + 13a + a2 = -40 + -13a + 40 + 13a

Reorder the terms:
40 + 13a + a2 = -40 + 40 + -13a + 13a

Combine like terms: -40 + 40 = 0
40 + 13a + a2 = 0 + -13a + 13a
40 + 13a + a2 = -13a + 13a

Combine like terms: -13a + 13a = 0
40 + 13a + a2 = 0

Factor a trinomial.
(8 + a)(5 + a) = 0

Subproblem 1

Set the factor '(8 + a)' equal to zero and attempt to solve: Simplifying 8 + a = 0 Solving 8 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + a = 0 + -8 Combine like terms: 8 + -8 = 0 0 + a = 0 + -8 a = 0 + -8 Combine like terms: 0 + -8 = -8 a = -8 Simplifying a = -8

Subproblem 2

Set the factor '(5 + a)' equal to zero and attempt to solve: Simplifying 5 + a = 0 Solving 5 + a = 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 + a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + a = 0 + -5 a = 0 + -5 Combine like terms: 0 + -5 = -5 a = -5 Simplifying a = -5

Solution

a = {-8, -5}

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