(9-v)(4v+2)=0

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Solution for (9-v)(4v+2)=0 equation:


Simplifying
(9 + -1v)(4v + 2) = 0

Reorder the terms:
(9 + -1v)(2 + 4v) = 0

Multiply (9 + -1v) * (2 + 4v)
(9(2 + 4v) + -1v * (2 + 4v)) = 0
((2 * 9 + 4v * 9) + -1v * (2 + 4v)) = 0
((18 + 36v) + -1v * (2 + 4v)) = 0
(18 + 36v + (2 * -1v + 4v * -1v)) = 0
(18 + 36v + (-2v + -4v2)) = 0

Combine like terms: 36v + -2v = 34v
(18 + 34v + -4v2) = 0

Solving
18 + 34v + -4v2 = 0

Solving for variable 'v'.

Factor out the Greatest Common Factor (GCF), '2'.
2(9 + 17v + -2v2) = 0

Factor a trinomial.
2((9 + -1v)(1 + 2v)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(1 + 2v)' equal to zero and attempt to solve: Simplifying 1 + 2v = 0 Solving 1 + 2v = 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 + 2v = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2v = 0 + -1 2v = 0 + -1 Combine like terms: 0 + -1 = -1 2v = -1 Divide each side by '2'. v = -0.5 Simplifying v = -0.5

Solution

v = {9, -0.5}

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