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Simplifying 5y2 = -16y + 45 Reorder the terms: 5y2 = 45 + -16y Solving 5y2 = 45 + -16y Solving for variable 'y'. Reorder the terms: -45 + 16y + 5y2 = 45 + -16y + -45 + 16y Reorder the terms: -45 + 16y + 5y2 = 45 + -45 + -16y + 16y Combine like terms: 45 + -45 = 0 -45 + 16y + 5y2 = 0 + -16y + 16y -45 + 16y + 5y2 = -16y + 16y Combine like terms: -16y + 16y = 0 -45 + 16y + 5y2 = 0 Factor a trinomial. (-5 + -1y)(9 + -5y) = 0Subproblem 1
Set the factor '(-5 + -1y)' equal to zero and attempt to solve: Simplifying -5 + -1y = 0 Solving -5 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1y = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1y = 0 + 5 -1y = 0 + 5 Combine like terms: 0 + 5 = 5 -1y = 5 Divide each side by '-1'. y = -5 Simplifying y = -5Subproblem 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 = {-5, 1.8}
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