(m+1)(2m+7)=3(m+4)-9

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Solution for (m+1)(2m+7)=3(m+4)-9 equation:


Simplifying
(m + 1)(2m + 7) = 3(m + 4) + -9

Reorder the terms:
(1 + m)(2m + 7) = 3(m + 4) + -9

Reorder the terms:
(1 + m)(7 + 2m) = 3(m + 4) + -9

Multiply (1 + m) * (7 + 2m)
(1(7 + 2m) + m(7 + 2m)) = 3(m + 4) + -9
((7 * 1 + 2m * 1) + m(7 + 2m)) = 3(m + 4) + -9
((7 + 2m) + m(7 + 2m)) = 3(m + 4) + -9
(7 + 2m + (7 * m + 2m * m)) = 3(m + 4) + -9
(7 + 2m + (7m + 2m2)) = 3(m + 4) + -9

Combine like terms: 2m + 7m = 9m
(7 + 9m + 2m2) = 3(m + 4) + -9

Reorder the terms:
7 + 9m + 2m2 = 3(4 + m) + -9
7 + 9m + 2m2 = (4 * 3 + m * 3) + -9
7 + 9m + 2m2 = (12 + 3m) + -9

Reorder the terms:
7 + 9m + 2m2 = 12 + -9 + 3m

Combine like terms: 12 + -9 = 3
7 + 9m + 2m2 = 3 + 3m

Solving
7 + 9m + 2m2 = 3 + 3m

Solving for variable 'm'.

Reorder the terms:
7 + -3 + 9m + -3m + 2m2 = 3 + 3m + -3 + -3m

Combine like terms: 7 + -3 = 4
4 + 9m + -3m + 2m2 = 3 + 3m + -3 + -3m

Combine like terms: 9m + -3m = 6m
4 + 6m + 2m2 = 3 + 3m + -3 + -3m

Reorder the terms:
4 + 6m + 2m2 = 3 + -3 + 3m + -3m

Combine like terms: 3 + -3 = 0
4 + 6m + 2m2 = 0 + 3m + -3m
4 + 6m + 2m2 = 3m + -3m

Combine like terms: 3m + -3m = 0
4 + 6m + 2m2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(2 + 3m + m2) = 0

Factor a trinomial.
2((2 + m)(1 + m)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(2 + m)' equal to zero and attempt to solve: Simplifying 2 + m = 0 Solving 2 + m = 0 Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + m = 0 + -2 Combine like terms: 2 + -2 = 0 0 + m = 0 + -2 m = 0 + -2 Combine like terms: 0 + -2 = -2 m = -2 Simplifying m = -2

Subproblem 2

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

Solution

m = {-2, -1}

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