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

Solution for (5+v)(2v-1)=0 equation:

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

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

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

Combine like terms: 10v + -1v = 9v
(-5 + 9v + 2v2) = 0

Solving
-5 + 9v + 2v2 = 0

Solving for variable 'v'.

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

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

Simplifying
-5 + -1v = 0

Solving
-5 + -1v = 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 + -1v = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1v = 0 + 5
-1v = 0 + 5

Combine like terms: 0 + 5 = 5
-1v = 5

Divide each side by '-1'.
v = -5

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

Simplifying
1 + -2v = 0

Solving
1 + -2v = 0

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

Add '-1' to each side of the equation.
1 + -1 + -2v = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -2v = 0 + -1
-2v = 0 + -1

Combine like terms: 0 + -1 = -1
-2v = -1

Divide each side by '-2'.
v = 0.5

Simplifying
v = 0.5
Solution
v = {-5, 0.5}