5m^2+20m=105

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Solution for 5m^2+20m=105 equation:


Simplifying
5m2 + 20m = 105

Reorder the terms:
20m + 5m2 = 105

Solving
20m + 5m2 = 105

Solving for variable 'm'.

Reorder the terms:
-105 + 20m + 5m2 = 105 + -105

Combine like terms: 105 + -105 = 0
-105 + 20m + 5m2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-21 + 4m + m2) = 0

Factor a trinomial.
5((-7 + -1m)(3 + -1m)) = 0

Ignore the factor 5.

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 '(3 + -1m)' equal to zero and attempt to solve: Simplifying 3 + -1m = 0 Solving 3 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1m = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1m = 0 + -3 -1m = 0 + -3 Combine like terms: 0 + -3 = -3 -1m = -3 Divide each side by '-1'. m = 3 Simplifying m = 3

Solution

m = {-7, 3}

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