a^2+4a+11=7

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Solution for a^2+4a+11=7 equation:


Simplifying
a2 + 4a + 11 = 7

Reorder the terms:
11 + 4a + a2 = 7

Solving
11 + 4a + a2 = 7

Solving for variable 'a'.

Reorder the terms:
11 + -7 + 4a + a2 = 7 + -7

Combine like terms: 11 + -7 = 4
4 + 4a + a2 = 7 + -7

Combine like terms: 7 + -7 = 0
4 + 4a + a2 = 0

Factor a trinomial.
(2 + a)(2 + a) = 0

Subproblem 1

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

Subproblem 2

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

Solution

a = {-2, -2}

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