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

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Solution for (5-v)(4v+1)=0 equation:


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

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

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

Combine like terms: 20v + -1v = 19v
(5 + 19v + -4v2) = 0

Solving
5 + 19v + -4v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(5 + -1v)(1 + 4v) = 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 + 4v)' equal to zero and attempt to solve: Simplifying 1 + 4v = 0 Solving 1 + 4v = 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 + 4v = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4v = 0 + -1 4v = 0 + -1 Combine like terms: 0 + -1 = -1 4v = -1 Divide each side by '4'. v = -0.25 Simplifying v = -0.25

Solution

v = {5, -0.25}

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