n^2+10n=-9

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Solution for n^2+10n=-9 equation:


Simplifying
n2 + 10n = -9

Reorder the terms:
10n + n2 = -9

Solving
10n + n2 = -9

Solving for variable 'n'.

Reorder the terms:
9 + 10n + n2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + 10n + n2 = 0

Factor a trinomial.
(9 + n)(1 + n) = 0

Subproblem 1

Set the factor '(9 + n)' equal to zero and attempt to solve: Simplifying 9 + n = 0 Solving 9 + n = 0 Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + n = 0 + -9 Combine like terms: 9 + -9 = 0 0 + n = 0 + -9 n = 0 + -9 Combine like terms: 0 + -9 = -9 n = -9 Simplifying n = -9

Subproblem 2

Set the factor '(1 + n)' equal to zero and attempt to solve: Simplifying 1 + n = 0 Solving 1 + n = 0 Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + n = 0 + -1 Combine like terms: 1 + -1 = 0 0 + n = 0 + -1 n = 0 + -1 Combine like terms: 0 + -1 = -1 n = -1 Simplifying n = -1

Solution

n = {-9, -1}

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