8(n+3)(n+7)=0

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Solution for 8(n+3)(n+7)=0 equation:


Simplifying
8(n + 3)(n + 7) = 0

Reorder the terms:
8(3 + n)(n + 7) = 0

Reorder the terms:
8(3 + n)(7 + n) = 0

Multiply (3 + n) * (7 + n)
8(3(7 + n) + n(7 + n)) = 0
8((7 * 3 + n * 3) + n(7 + n)) = 0
8((21 + 3n) + n(7 + n)) = 0
8(21 + 3n + (7 * n + n * n)) = 0
8(21 + 3n + (7n + n2)) = 0

Combine like terms: 3n + 7n = 10n
8(21 + 10n + n2) = 0
(21 * 8 + 10n * 8 + n2 * 8) = 0
(168 + 80n + 8n2) = 0

Solving
168 + 80n + 8n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '8'.
8(21 + 10n + n2) = 0

Factor a trinomial.
8((7 + n)(3 + n)) = 0

Ignore the factor 8.

Subproblem 1

Set the factor '(7 + n)' equal to zero and attempt to solve: Simplifying 7 + n = 0 Solving 7 + n = 0 Move all terms containing n to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + n = 0 + -7 Combine like terms: 7 + -7 = 0 0 + n = 0 + -7 n = 0 + -7 Combine like terms: 0 + -7 = -7 n = -7 Simplifying n = -7

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 = {-7, -3}

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