(8+v)(4v-7)=0

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Solution for (8+v)(4v-7)=0 equation: 


Simplifying
(8 + v)(4v + -7) = 0

Reorder the terms:
(8 + v)(-7 + 4v) = 0

Multiply (8 + v) * (-7 + 4v)
(8(-7 + 4v) + v(-7 + 4v)) = 0
((-7 * 8 + 4v * 8) + v(-7 + 4v)) = 0
((-56 + 32v) + v(-7 + 4v)) = 0
(-56 + 32v + (-7 * v + 4v * v)) = 0
(-56 + 32v + (-7v + 4v2)) = 0

Combine like terms: 32v + -7v = 25v
(-56 + 25v + 4v2) = 0

Solving
-56 + 25v + 4v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-8 + -1v)(7 + -4v) = 0


Subproblem 1
Set the factor '(-8 + -1v)' equal to zero and attempt to solve:

Simplifying
-8 + -1v = 0

Solving
-8 + -1v = 0

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

Add '8' to each side of the equation.
-8 + 8 + -1v = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -1v = 0 + 8
-1v = 0 + 8

Combine like terms: 0 + 8 = 8
-1v = 8

Divide each side by '-1'.
v = -8

Simplifying
v = -8

Subproblem 2
Set the factor '(7 + -4v)' equal to zero and attempt to solve:

Simplifying
7 + -4v = 0

Solving
7 + -4v = 0

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

Add '-7' to each side of the equation.
7 + -7 + -4v = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -4v = 0 + -7
-4v = 0 + -7

Combine like terms: 0 + -7 = -7
-4v = -7

Divide each side by '-4'.
v = 1.75

Simplifying
v = 1.75
Solution
v = {-8, 1.75}

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