-r^2-8r+48=

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Solution for -r^2-8r+48= equation:


Simplifying
-1r2 + -8r + 48 = 0

Reorder the terms:
48 + -8r + -1r2 = 0

Solving
48 + -8r + -1r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(4 + -1r)(12 + r) = 0

Subproblem 1

Set the factor '(4 + -1r)' equal to zero and attempt to solve: Simplifying 4 + -1r = 0 Solving 4 + -1r = 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 + -1r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1r = 0 + -4 -1r = 0 + -4 Combine like terms: 0 + -4 = -4 -1r = -4 Divide each side by '-1'. r = 4 Simplifying r = 4

Subproblem 2

Set the factor '(12 + r)' equal to zero and attempt to solve: Simplifying 12 + r = 0 Solving 12 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + r = 0 + -12 Combine like terms: 12 + -12 = 0 0 + r = 0 + -12 r = 0 + -12 Combine like terms: 0 + -12 = -12 r = -12 Simplifying r = -12

Solution

r = {4, -12}

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