3n^2=-9n-6

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Solution for 3n^2=-9n-6 equation:


Simplifying
3n2 = -9n + -6

Reorder the terms:
3n2 = -6 + -9n

Solving
3n2 = -6 + -9n

Solving for variable 'n'.

Reorder the terms:
6 + 9n + 3n2 = -6 + -9n + 6 + 9n

Reorder the terms:
6 + 9n + 3n2 = -6 + 6 + -9n + 9n

Combine like terms: -6 + 6 = 0
6 + 9n + 3n2 = 0 + -9n + 9n
6 + 9n + 3n2 = -9n + 9n

Combine like terms: -9n + 9n = 0
6 + 9n + 3n2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(2 + 3n + n2) = 0

Factor a trinomial.
3((2 + n)(1 + n)) = 0

Ignore the factor 3.

Subproblem 1

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

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 = {-2, -1}

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