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Simplifying (5y + -4)(2 + -1y) = 0 Reorder the terms: (-4 + 5y)(2 + -1y) = 0 Multiply (-4 + 5y) * (2 + -1y) (-4(2 + -1y) + 5y * (2 + -1y)) = 0 ((2 * -4 + -1y * -4) + 5y * (2 + -1y)) = 0 ((-8 + 4y) + 5y * (2 + -1y)) = 0 (-8 + 4y + (2 * 5y + -1y * 5y)) = 0 (-8 + 4y + (10y + -5y2)) = 0 Combine like terms: 4y + 10y = 14y (-8 + 14y + -5y2) = 0 Solving -8 + 14y + -5y2 = 0 Solving for variable 'y'. Factor a trinomial. (-2 + y)(4 + -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 '(4 + -5y)' equal to zero and attempt to solve: Simplifying 4 + -5y = 0 Solving 4 + -5y = 0 Move all terms containing y to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -5y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5y = 0 + -4 -5y = 0 + -4 Combine like terms: 0 + -4 = -4 -5y = -4 Divide each side by '-5'. y = 0.8 Simplifying y = 0.8Solution
y = {2, 0.8}
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