n^2+7n=-12

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Solution for n^2+7n=-12 equation:


Simplifying
n2 + 7n = -12

Reorder the terms:
7n + n2 = -12

Solving
7n + n2 = -12

Solving for variable 'n'.

Reorder the terms:
12 + 7n + n2 = -12 + 12

Combine like terms: -12 + 12 = 0
12 + 7n + n2 = 0

Factor a trinomial.
(4 + n)(3 + n) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + n)' equal to zero and attempt to solve: Simplifying 3 + n = 0 Solving 3 + n = 0 Move all terms containing n to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + n = 0 + -3 Combine like terms: 3 + -3 = 0 0 + n = 0 + -3 n = 0 + -3 Combine like terms: 0 + -3 = -3 n = -3 Simplifying n = -3

Solution

n = {-4, -3}

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