r^2+12r=-35

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Solution for r^2+12r=-35 equation:


Simplifying
r2 + 12r = -35

Reorder the terms:
12r + r2 = -35

Solving
12r + r2 = -35

Solving for variable 'r'.

Reorder the terms:
35 + 12r + r2 = -35 + 35

Combine like terms: -35 + 35 = 0
35 + 12r + r2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

r = {-7, -5}

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