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

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


Simplifying
(8 + -1v)(4v + 7) = 0

Reorder the terms:
(8 + -1v)(7 + 4v) = 0

Multiply (8 + -1v) * (7 + 4v)
(8(7 + 4v) + -1v * (7 + 4v)) = 0
((7 * 8 + 4v * 8) + -1v * (7 + 4v)) = 0
((56 + 32v) + -1v * (7 + 4v)) = 0
(56 + 32v + (7 * -1v + 4v * -1v)) = 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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