2n^2+12n+15=-3

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Solution for 2n^2+12n+15=-3 equation:


Simplifying
2n2 + 12n + 15 = -3

Reorder the terms:
15 + 12n + 2n2 = -3

Solving
15 + 12n + 2n2 = -3

Solving for variable 'n'.

Reorder the terms:
15 + 3 + 12n + 2n2 = -3 + 3

Combine like terms: 15 + 3 = 18
18 + 12n + 2n2 = -3 + 3

Combine like terms: -3 + 3 = 0
18 + 12n + 2n2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(9 + 6n + n2) = 0

Factor a trinomial.
2((3 + n)(3 + n)) = 0

Ignore the factor 2.

Subproblem 1

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

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 = {-3, -3}

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