3r(-4r-8)=

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Solution for 3r(-4r-8)= equation:


Simplifying
3r(-4r + -8) = 0

Reorder the terms:
3r(-8 + -4r) = 0
(-8 * 3r + -4r * 3r) = 0
(-24r + -12r2) = 0

Solving
-24r + -12r2 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '-12r'.
-12r(2 + r) = 0

Ignore the factor -12.

Subproblem 1

Set the factor 'r' equal to zero and attempt to solve: Simplifying r = 0 Solving r = 0 Move all terms containing r to the left, all other terms to the right. Simplifying r = 0

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 = {0, -2}

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