(v+7)(v-5)=

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


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

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

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

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

Combine like terms: 7v + -5v = 2v
(-35 + 2v + v2) = 0

Solving
-35 + 2v + v2 = 0

Solving for variable 'v'.

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

Subproblem 1

Set the factor '(-7 + -1v)' equal to zero and attempt to solve: Simplifying -7 + -1v = 0 Solving -7 + -1v = 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 + -1v = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1v = 0 + 7 -1v = 0 + 7 Combine like terms: 0 + 7 = 7 -1v = 7 Divide each side by '-1'. v = -7 Simplifying v = -7

Subproblem 2

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

Solution

v = {-7, 5}

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