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

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

Simplifying
(2v + 5)(3 + -1v) = 0

Reorder the terms:
(5 + 2v)(3 + -1v) = 0

Multiply (5 + 2v) * (3 + -1v)
(5(3 + -1v) + 2v * (3 + -1v)) = 0
((3 * 5 + -1v * 5) + 2v * (3 + -1v)) = 0
((15 + -5v) + 2v * (3 + -1v)) = 0
(15 + -5v + (3 * 2v + -1v * 2v)) = 0
(15 + -5v + (6v + -2v2)) = 0

Combine like terms: -5v + 6v = 1v
(15 + 1v + -2v2) = 0

Solving
15 + 1v + -2v2 = 0

Solving for variable 'v'.

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

Subproblem 1
Set the factor '(3 + -1v)' equal to zero and attempt to solve:

Simplifying
3 + -1v = 0

Solving
3 + -1v = 0

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

Add '-3' to each side of the equation.
3 + -3 + -1v = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1v = 0 + -3
-1v = 0 + -3

Combine like terms: 0 + -3 = -3
-1v = -3

Divide each side by '-1'.
v = 3

Simplifying
v = 3
Subproblem 2
Set the factor '(5 + 2v)' equal to zero and attempt to solve:

Simplifying
5 + 2v = 0

Solving
5 + 2v = 0

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

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

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

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

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

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