(v+4)(v-9)=0

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Solution for (v+4)(v-9)=0 equation:


Simplifying
(v + 4)(v + -9) = 0

Reorder the terms:
(4 + v)(v + -9) = 0

Reorder the terms:
(4 + v)(-9 + v) = 0

Multiply (4 + v) * (-9 + v)
(4(-9 + v) + v(-9 + v)) = 0
((-9 * 4 + v * 4) + v(-9 + v)) = 0
((-36 + 4v) + v(-9 + v)) = 0
(-36 + 4v + (-9 * v + v * v)) = 0
(-36 + 4v + (-9v + v2)) = 0

Combine like terms: 4v + -9v = -5v
(-36 + -5v + v2) = 0

Solving
-36 + -5v + v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-4 + -1v)(9 + -1v) = 0

Subproblem 1

Set the factor '(-4 + -1v)' equal to zero and attempt to solve: Simplifying -4 + -1v = 0 Solving -4 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1v = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1v = 0 + 4 -1v = 0 + 4 Combine like terms: 0 + 4 = 4 -1v = 4 Divide each side by '-1'. v = -4 Simplifying v = -4

Subproblem 2

Set the factor '(9 + -1v)' equal to zero and attempt to solve: Simplifying 9 + -1v = 0 Solving 9 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1v = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1v = 0 + -9 -1v = 0 + -9 Combine like terms: 0 + -9 = -9 -1v = -9 Divide each side by '-1'. v = 9 Simplifying v = 9

Solution

v = {-4, 9}

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