(m+7)(m-4)=

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Solution for (m+7)(m-4)= equation:


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

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

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

Multiply (7 + m) * (-4 + m)
(7(-4 + m) + m(-4 + m)) = 0
((-4 * 7 + m * 7) + m(-4 + m)) = 0
((-28 + 7m) + m(-4 + m)) = 0
(-28 + 7m + (-4 * m + m * m)) = 0
(-28 + 7m + (-4m + m2)) = 0

Combine like terms: 7m + -4m = 3m
(-28 + 3m + m2) = 0

Solving
-28 + 3m + m2 = 0

Solving for variable 'm'.

Factor a trinomial.
(-7 + -1m)(4 + -1m) = 0

Subproblem 1

Set the factor '(-7 + -1m)' equal to zero and attempt to solve: Simplifying -7 + -1m = 0 Solving -7 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1m = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1m = 0 + 7 -1m = 0 + 7 Combine like terms: 0 + 7 = 7 -1m = 7 Divide each side by '-1'. m = -7 Simplifying m = -7

Subproblem 2

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

Solution

m = {-7, 4}

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