r^2=-8-6r

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Solution for r^2=-8-6r equation:


Simplifying
r2 = -8 + -6r

Solving
r2 = -8 + -6r

Solving for variable 'r'.

Reorder the terms:
8 + 6r + r2 = -8 + -6r + 8 + 6r

Reorder the terms:
8 + 6r + r2 = -8 + 8 + -6r + 6r

Combine like terms: -8 + 8 = 0
8 + 6r + r2 = 0 + -6r + 6r
8 + 6r + r2 = -6r + 6r

Combine like terms: -6r + 6r = 0
8 + 6r + r2 = 0

Factor a trinomial.
(4 + r)(2 + r) = 0

Subproblem 1

Set the factor '(4 + r)' equal to zero and attempt to solve: Simplifying 4 + r = 0 Solving 4 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + r = 0 + -4 r = 0 + -4 Combine like terms: 0 + -4 = -4 r = -4 Simplifying r = -4

Subproblem 2

Set the factor '(2 + r)' equal to zero and attempt to solve: Simplifying 2 + r = 0 Solving 2 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + r = 0 + -2 r = 0 + -2 Combine like terms: 0 + -2 = -2 r = -2 Simplifying r = -2

Solution

r = {-4, -2}

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