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Simplifying (7 + -1v)(4v + -9) = 0 Reorder the terms: (7 + -1v)(-9 + 4v) = 0 Multiply (7 + -1v) * (-9 + 4v) (7(-9 + 4v) + -1v * (-9 + 4v)) = 0 ((-9 * 7 + 4v * 7) + -1v * (-9 + 4v)) = 0 ((-63 + 28v) + -1v * (-9 + 4v)) = 0 (-63 + 28v + (-9 * -1v + 4v * -1v)) = 0 (-63 + 28v + (9v + -4v2)) = 0 Combine like terms: 28v + 9v = 37v (-63 + 37v + -4v2) = 0 Solving -63 + 37v + -4v2 = 0 Solving for variable 'v'. Factor a trinomial. (-7 + v)(9 + -4v) = 0Subproblem 1
Set the factor '(-7 + v)' equal to zero and attempt to solve: Simplifying -7 + v = 0 Solving -7 + v = 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 + v = 0 + 7 Combine like terms: -7 + 7 = 0 0 + v = 0 + 7 v = 0 + 7 Combine like terms: 0 + 7 = 7 v = 7 Simplifying v = 7Subproblem 2
Set the factor '(9 + -4v)' equal to zero and attempt to solve: Simplifying 9 + -4v = 0 Solving 9 + -4v = 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 + -4v = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4v = 0 + -9 -4v = 0 + -9 Combine like terms: 0 + -9 = -9 -4v = -9 Divide each side by '-4'. v = 2.25 Simplifying v = 2.25Solution
v = {7, 2.25}
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