(9v-5)(v+5)=0

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Solution for (9v-5)(v+5)=0 equation:


Simplifying
(9v + -5)(v + 5) = 0

Reorder the terms:
(-5 + 9v)(v + 5) = 0

Reorder the terms:
(-5 + 9v)(5 + v) = 0

Multiply (-5 + 9v) * (5 + v)
(-5(5 + v) + 9v * (5 + v)) = 0
((5 * -5 + v * -5) + 9v * (5 + v)) = 0
((-25 + -5v) + 9v * (5 + v)) = 0
(-25 + -5v + (5 * 9v + v * 9v)) = 0
(-25 + -5v + (45v + 9v2)) = 0

Combine like terms: -5v + 45v = 40v
(-25 + 40v + 9v2) = 0

Solving
-25 + 40v + 9v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-5 + -1v)(5 + -9v) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(5 + -9v)' equal to zero and attempt to solve: Simplifying 5 + -9v = 0 Solving 5 + -9v = 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 + -9v = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -9v = 0 + -5 -9v = 0 + -5 Combine like terms: 0 + -5 = -5 -9v = -5 Divide each side by '-9'. v = 0.5555555556 Simplifying v = 0.5555555556

Solution

v = {-5, 0.5555555556}

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