(2v-9)(5-v)=0

Solution for (2v-9)(5-v)=0 equation:

Simplifying
(2v + -9)(5 + -1v) = 0

Reorder the terms:
(-9 + 2v)(5 + -1v) = 0

Multiply (-9 + 2v) * (5 + -1v)
(-9(5 + -1v) + 2v * (5 + -1v)) = 0
((5 * -9 + -1v * -9) + 2v * (5 + -1v)) = 0
((-45 + 9v) + 2v * (5 + -1v)) = 0
(-45 + 9v + (5 * 2v + -1v * 2v)) = 0
(-45 + 9v + (10v + -2v2)) = 0

Combine like terms: 9v + 10v = 19v
(-45 + 19v + -2v2) = 0

Solving
-45 + 19v + -2v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-5 + v)(9 + -2v) = 0

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

Simplifying
-5 + v = 0

Solving
-5 + v = 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 + v = 0 + 5

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

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

Simplifying
v = 5
Subproblem 2
Set the factor '(9 + -2v)' equal to zero and attempt to solve:

Simplifying
9 + -2v = 0

Solving
9 + -2v = 0

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

Add '-9' to each side of the equation.
9 + -9 + -2v = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -2v = 0 + -9
-2v = 0 + -9

Combine like terms: 0 + -9 = -9
-2v = -9

Divide each side by '-2'.
v = 4.5

Simplifying
v = 4.5
Solution
v = {5, 4.5}