m(m-5)=84

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Solution for m(m-5)=84 equation:


Simplifying
m(m + -5) = 84

Reorder the terms:
m(-5 + m) = 84
(-5 * m + m * m) = 84
(-5m + m2) = 84

Solving
-5m + m2 = 84

Solving for variable 'm'.

Reorder the terms:
-84 + -5m + m2 = 84 + -84

Combine like terms: 84 + -84 = 0
-84 + -5m + m2 = 0

Factor a trinomial.
(-7 + -1m)(12 + -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 '(12 + -1m)' equal to zero and attempt to solve: Simplifying 12 + -1m = 0 Solving 12 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1m = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1m = 0 + -12 -1m = 0 + -12 Combine like terms: 0 + -12 = -12 -1m = -12 Divide each side by '-1'. m = 12 Simplifying m = 12

Solution

m = {-7, 12}

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