(7v+3)(4v-5)=0

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Solution for (7v+3)(4v-5)=0 equation:


Simplifying
(7v + 3)(4v + -5) = 0

Reorder the terms:
(3 + 7v)(4v + -5) = 0

Reorder the terms:
(3 + 7v)(-5 + 4v) = 0

Multiply (3 + 7v) * (-5 + 4v)
(3(-5 + 4v) + 7v * (-5 + 4v)) = 0
((-5 * 3 + 4v * 3) + 7v * (-5 + 4v)) = 0
((-15 + 12v) + 7v * (-5 + 4v)) = 0
(-15 + 12v + (-5 * 7v + 4v * 7v)) = 0
(-15 + 12v + (-35v + 28v2)) = 0

Combine like terms: 12v + -35v = -23v
(-15 + -23v + 28v2) = 0

Solving
-15 + -23v + 28v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-3 + -7v)(5 + -4v) = 0

Subproblem 1

Set the factor '(-3 + -7v)' equal to zero and attempt to solve: Simplifying -3 + -7v = 0 Solving -3 + -7v = 0 Move all terms containing v to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -7v = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -7v = 0 + 3 -7v = 0 + 3 Combine like terms: 0 + 3 = 3 -7v = 3 Divide each side by '-7'. v = -0.4285714286 Simplifying v = -0.4285714286

Subproblem 2

Set the factor '(5 + -4v)' equal to zero and attempt to solve: Simplifying 5 + -4v = 0 Solving 5 + -4v = 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 + -4v = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4v = 0 + -5 -4v = 0 + -5 Combine like terms: 0 + -5 = -5 -4v = -5 Divide each side by '-4'. v = 1.25 Simplifying v = 1.25

Solution

v = {-0.4285714286, 1.25}

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