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Simplifying (5y + -9)(2 + -1y) = 0 Reorder the terms: (-9 + 5y)(2 + -1y) = 0 Multiply (-9 + 5y) * (2 + -1y) (-9(2 + -1y) + 5y * (2 + -1y)) = 0 ((2 * -9 + -1y * -9) + 5y * (2 + -1y)) = 0 ((-18 + 9y) + 5y * (2 + -1y)) = 0 (-18 + 9y + (2 * 5y + -1y * 5y)) = 0 (-18 + 9y + (10y + -5y2)) = 0 Combine like terms: 9y + 10y = 19y (-18 + 19y + -5y2) = 0 Solving -18 + 19y + -5y2 = 0 Solving for variable 'y'. Factor a trinomial. (-2 + y)(9 + -5y) = 0Subproblem 1
Set the factor '(-2 + y)' equal to zero and attempt to solve: Simplifying -2 + y = 0 Solving -2 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + y = 0 + 2 Combine like terms: -2 + 2 = 0 0 + y = 0 + 2 y = 0 + 2 Combine like terms: 0 + 2 = 2 y = 2 Simplifying y = 2Subproblem 2
Set the factor '(9 + -5y)' equal to zero and attempt to solve: Simplifying 9 + -5y = 0 Solving 9 + -5y = 0 Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -5y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -5y = 0 + -9 -5y = 0 + -9 Combine like terms: 0 + -9 = -9 -5y = -9 Divide each side by '-5'. y = 1.8 Simplifying y = 1.8Solution
y = {2, 1.8}
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