(4v-7)(5-v)=0

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Solution for (4v-7)(5-v)=0 equation:


Simplifying
(4v + -7)(5 + -1v) = 0

Reorder the terms:
(-7 + 4v)(5 + -1v) = 0

Multiply (-7 + 4v) * (5 + -1v)
(-7(5 + -1v) + 4v * (5 + -1v)) = 0
((5 * -7 + -1v * -7) + 4v * (5 + -1v)) = 0
((-35 + 7v) + 4v * (5 + -1v)) = 0
(-35 + 7v + (5 * 4v + -1v * 4v)) = 0
(-35 + 7v + (20v + -4v2)) = 0

Combine like terms: 7v + 20v = 27v
(-35 + 27v + -4v2) = 0

Solving
-35 + 27v + -4v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-5 + v)(7 + -4v) = 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 '(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 = {5, 1.75}

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