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Simplifying y2 + -81y + -4212 = 0 Reorder the terms: -4212 + -81y + y2 = 0 Solving -4212 + -81y + y2 = 0 Solving for variable 'y'. Factor a trinomial. (-36 + -1y)(117 + -1y) = 0Subproblem 1
Set the factor '(-36 + -1y)' equal to zero and attempt to solve: Simplifying -36 + -1y = 0 Solving -36 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '36' to each side of the equation. -36 + 36 + -1y = 0 + 36 Combine like terms: -36 + 36 = 0 0 + -1y = 0 + 36 -1y = 0 + 36 Combine like terms: 0 + 36 = 36 -1y = 36 Divide each side by '-1'. y = -36 Simplifying y = -36Subproblem 2
Set the factor '(117 + -1y)' equal to zero and attempt to solve: Simplifying 117 + -1y = 0 Solving 117 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-117' to each side of the equation. 117 + -117 + -1y = 0 + -117 Combine like terms: 117 + -117 = 0 0 + -1y = 0 + -117 -1y = 0 + -117 Combine like terms: 0 + -117 = -117 -1y = -117 Divide each side by '-1'. y = 117 Simplifying y = 117Solution
y = {-36, 117}
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