a^2=-28-11a

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Solution for a^2=-28-11a equation:


Simplifying
a2 = -28 + -11a

Solving
a2 = -28 + -11a

Solving for variable 'a'.

Reorder the terms:
28 + 11a + a2 = -28 + -11a + 28 + 11a

Reorder the terms:
28 + 11a + a2 = -28 + 28 + -11a + 11a

Combine like terms: -28 + 28 = 0
28 + 11a + a2 = 0 + -11a + 11a
28 + 11a + a2 = -11a + 11a

Combine like terms: -11a + 11a = 0
28 + 11a + a2 = 0

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

Subproblem 1

Set the factor '(7 + a)' equal to zero and attempt to solve: Simplifying 7 + a = 0 Solving 7 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + a = 0 + -7 a = 0 + -7 Combine like terms: 0 + -7 = -7 a = -7 Simplifying a = -7

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 = {-7, -4}

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