(-7m-4)(-2m-8)=

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Solution for (-7m-4)(-2m-8)= equation:


Simplifying
(-7m + -4)(-2m + -8) = 0

Reorder the terms:
(-4 + -7m)(-2m + -8) = 0

Reorder the terms:
(-4 + -7m)(-8 + -2m) = 0

Multiply (-4 + -7m) * (-8 + -2m)
(-4(-8 + -2m) + -7m * (-8 + -2m)) = 0
((-8 * -4 + -2m * -4) + -7m * (-8 + -2m)) = 0
((32 + 8m) + -7m * (-8 + -2m)) = 0
(32 + 8m + (-8 * -7m + -2m * -7m)) = 0
(32 + 8m + (56m + 14m2)) = 0

Combine like terms: 8m + 56m = 64m
(32 + 64m + 14m2) = 0

Solving
32 + 64m + 14m2 = 0

Solving for variable 'm'.

Factor out the Greatest Common Factor (GCF), '2'.
2(16 + 32m + 7m2) = 0

Factor a trinomial.
2((4 + m)(4 + 7m)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(4 + 7m)' equal to zero and attempt to solve: Simplifying 4 + 7m = 0 Solving 4 + 7m = 0 Move all terms containing m to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 7m = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 7m = 0 + -4 7m = 0 + -4 Combine like terms: 0 + -4 = -4 7m = -4 Divide each side by '7'. m = -0.5714285714 Simplifying m = -0.5714285714

Solution

m = {-4, -0.5714285714}

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