(m+3)(2m-5)=0

Solution for (m+3)(2m-5)=0 equation:

Simplifying
(m + 3)(2m + -5) = 0

Reorder the terms:
(3 + m)(2m + -5) = 0

Reorder the terms:
(3 + m)(-5 + 2m) = 0

Multiply (3 + m) * (-5 + 2m)
(3(-5 + 2m) + m(-5 + 2m)) = 0
((-5 * 3 + 2m * 3) + m(-5 + 2m)) = 0
((-15 + 6m) + m(-5 + 2m)) = 0
(-15 + 6m + (-5 * m + 2m * m)) = 0
(-15 + 6m + (-5m + 2m2)) = 0

Combine like terms: 6m + -5m = 1m
(-15 + 1m + 2m2) = 0

Solving
-15 + 1m + 2m2 = 0

Solving for variable 'm'.

Factor a trinomial.
(-3 + -1m)(5 + -2m) = 0

Subproblem 1
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
Subproblem 2
Set the factor '(5 + -2m)' equal to zero and attempt to solve:

Simplifying
5 + -2m = 0

Solving
5 + -2m = 0

Move all terms containing m to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + -2m = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -2m = 0 + -5
-2m = 0 + -5

Combine like terms: 0 + -5 = -5
-2m = -5

Divide each side by '-2'.
m = 2.5

Simplifying
m = 2.5
Solution
m = {-3, 2.5}