(v-7)(v+1)=0

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Solution for (v-7)(v+1)=0 equation:


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

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

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

Multiply (-7 + v) * (1 + v)
(-7(1 + v) + v(1 + v)) = 0
((1 * -7 + v * -7) + v(1 + v)) = 0
((-7 + -7v) + v(1 + v)) = 0
(-7 + -7v + (1 * v + v * v)) = 0
(-7 + -7v + (1v + v2)) = 0

Combine like terms: -7v + 1v = -6v
(-7 + -6v + v2) = 0

Solving
-7 + -6v + v2 = 0

Solving for variable 'v'.

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

Subproblem 1

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

Subproblem 2

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

Solution

v = {-1, 7}

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