a^2+20a+61=-3

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Solution for a^2+20a+61=-3 equation:


Simplifying
a2 + 20a + 61 = -3

Reorder the terms:
61 + 20a + a2 = -3

Solving
61 + 20a + a2 = -3

Solving for variable 'a'.

Reorder the terms:
61 + 3 + 20a + a2 = -3 + 3

Combine like terms: 61 + 3 = 64
64 + 20a + a2 = -3 + 3

Combine like terms: -3 + 3 = 0
64 + 20a + a2 = 0

Factor a trinomial.
(16 + a)(4 + a) = 0

Subproblem 1

Set the factor '(16 + a)' equal to zero and attempt to solve: Simplifying 16 + a = 0 Solving 16 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + a = 0 + -16 Combine like terms: 16 + -16 = 0 0 + a = 0 + -16 a = 0 + -16 Combine like terms: 0 + -16 = -16 a = -16 Simplifying a = -16

Subproblem 2

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

Solution

a = {-16, -4}

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