(7v+5)(2v-6)=0

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Solution for (7v+5)(2v-6)=0 equation:


Simplifying
(7v + 5)(2v + -6) = 0

Reorder the terms:
(5 + 7v)(2v + -6) = 0

Reorder the terms:
(5 + 7v)(-6 + 2v) = 0

Multiply (5 + 7v) * (-6 + 2v)
(5(-6 + 2v) + 7v * (-6 + 2v)) = 0
((-6 * 5 + 2v * 5) + 7v * (-6 + 2v)) = 0
((-30 + 10v) + 7v * (-6 + 2v)) = 0
(-30 + 10v + (-6 * 7v + 2v * 7v)) = 0
(-30 + 10v + (-42v + 14v2)) = 0

Combine like terms: 10v + -42v = -32v
(-30 + -32v + 14v2) = 0

Solving
-30 + -32v + 14v2 = 0

Solving for variable 'v'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-15 + -16v + 7v2) = 0

Factor a trinomial.
2((-5 + -7v)(3 + -1v)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + -7v)' equal to zero and attempt to solve: Simplifying -5 + -7v = 0 Solving -5 + -7v = 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 + -7v = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -7v = 0 + 5 -7v = 0 + 5 Combine like terms: 0 + 5 = 5 -7v = 5 Divide each side by '-7'. v = -0.7142857143 Simplifying v = -0.7142857143

Subproblem 2

Set the factor '(3 + -1v)' equal to zero and attempt to solve: Simplifying 3 + -1v = 0 Solving 3 + -1v = 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 + -1v = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1v = 0 + -3 -1v = 0 + -3 Combine like terms: 0 + -3 = -3 -1v = -3 Divide each side by '-1'. v = 3 Simplifying v = 3

Solution

v = {-0.7142857143, 3}

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