(n+4)(n-2)=-8

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Solution for (n+4)(n-2)=-8 equation:


Simplifying
(n + 4)(n + -2) = -8

Reorder the terms:
(4 + n)(n + -2) = -8

Reorder the terms:
(4 + n)(-2 + n) = -8

Multiply (4 + n) * (-2 + n)
(4(-2 + n) + n(-2 + n)) = -8
((-2 * 4 + n * 4) + n(-2 + n)) = -8
((-8 + 4n) + n(-2 + n)) = -8
(-8 + 4n + (-2 * n + n * n)) = -8
(-8 + 4n + (-2n + n2)) = -8

Combine like terms: 4n + -2n = 2n
(-8 + 2n + n2) = -8

Add '8' to each side of the equation.
-8 + 2n + 8 + n2 = -8 + 8

Reorder the terms:
-8 + 8 + 2n + n2 = -8 + 8

Combine like terms: -8 + 8 = 0
0 + 2n + n2 = -8 + 8
2n + n2 = -8 + 8

Combine like terms: -8 + 8 = 0
2n + n2 = 0

Solving
2n + n2 = 0

Solving for variable 'n'.

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

Subproblem 1

Set the factor 'n' equal to zero and attempt to solve: Simplifying n = 0 Solving n = 0 Move all terms containing n to the left, all other terms to the right. Simplifying n = 0

Subproblem 2

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

Solution

n = {0, -2}

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