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Simplifying (n + 1)(n + 7) = 0 Reorder the terms: (1 + n)(n + 7) = 0 Reorder the terms: (1 + n)(7 + n) = 0 Multiply (1 + n) * (7 + n) (1(7 + n) + n(7 + n)) = 0 ((7 * 1 + n * 1) + n(7 + n)) = 0 ((7 + 1n) + n(7 + n)) = 0 (7 + 1n + (7 * n + n * n)) = 0 (7 + 1n + (7n + n2)) = 0 Combine like terms: 1n + 7n = 8n (7 + 8n + n2) = 0 Solving 7 + 8n + n2 = 0 Solving for variable 'n'. Factor a trinomial. (7 + n)(1 + n) = 0Subproblem 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 = -7Subproblem 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 = -1Solution
n = {-7, -1}
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