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Simplifying (4v + 5)(9 + -1v) = 0 Reorder the terms: (5 + 4v)(9 + -1v) = 0 Multiply (5 + 4v) * (9 + -1v) (5(9 + -1v) + 4v * (9 + -1v)) = 0 ((9 * 5 + -1v * 5) + 4v * (9 + -1v)) = 0 ((45 + -5v) + 4v * (9 + -1v)) = 0 (45 + -5v + (9 * 4v + -1v * 4v)) = 0 (45 + -5v + (36v + -4v2)) = 0 Combine like terms: -5v + 36v = 31v (45 + 31v + -4v2) = 0 Solving 45 + 31v + -4v2 = 0 Solving for variable 'v'. Factor a trinomial. (9 + -1v)(5 + 4v) = 0Subproblem 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 = 9Subproblem 2
Set the factor '(5 + 4v)' equal to zero and attempt to solve: Simplifying 5 + 4v = 0 Solving 5 + 4v = 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 + 4v = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 4v = 0 + -5 4v = 0 + -5 Combine like terms: 0 + -5 = -5 4v = -5 Divide each side by '4'. v = -1.25 Simplifying v = -1.25Solution
v = {9, -1.25}
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