(n+7)(n+5)=

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Solution for (n+7)(n+5)= equation:


Simplifying
(n + 7)(n + 5) = 0

Reorder the terms:
(7 + n)(n + 5) = 0

Reorder the terms:
(7 + n)(5 + n) = 0

Multiply (7 + n) * (5 + n)
(7(5 + n) + n(5 + n)) = 0
((5 * 7 + n * 7) + n(5 + n)) = 0
((35 + 7n) + n(5 + n)) = 0
(35 + 7n + (5 * n + n * n)) = 0
(35 + 7n + (5n + n2)) = 0

Combine like terms: 7n + 5n = 12n
(35 + 12n + n2) = 0

Solving
35 + 12n + n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(7 + n)(5 + n) = 0

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 '(5 + n)' equal to zero and attempt to solve: Simplifying 5 + n = 0 Solving 5 + n = 0 Move all terms containing n to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + n = 0 + -5 Combine like terms: 5 + -5 = 0 0 + n = 0 + -5 n = 0 + -5 Combine like terms: 0 + -5 = -5 n = -5 Simplifying n = -5

Solution

n = {-7, -5}

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