(m+9)(m-3)=

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Solution for (m+9)(m-3)= equation:


Simplifying
(m + 9)(m + -3) = 0

Reorder the terms:
(9 + m)(m + -3) = 0

Reorder the terms:
(9 + m)(-3 + m) = 0

Multiply (9 + m) * (-3 + m)
(9(-3 + m) + m(-3 + m)) = 0
((-3 * 9 + m * 9) + m(-3 + m)) = 0
((-27 + 9m) + m(-3 + m)) = 0
(-27 + 9m + (-3 * m + m * m)) = 0
(-27 + 9m + (-3m + m2)) = 0

Combine like terms: 9m + -3m = 6m
(-27 + 6m + m2) = 0

Solving
-27 + 6m + m2 = 0

Solving for variable 'm'.

Factor a trinomial.
(-9 + -1m)(3 + -1m) = 0

Subproblem 1

Set the factor '(-9 + -1m)' equal to zero and attempt to solve: Simplifying -9 + -1m = 0 Solving -9 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1m = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1m = 0 + 9 -1m = 0 + 9 Combine like terms: 0 + 9 = 9 -1m = 9 Divide each side by '-1'. m = -9 Simplifying m = -9

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 = {-9, 3}

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