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Simplifying -5(2y + -8) + -1y = -3y(y + -3) Reorder the terms: -5(-8 + 2y) + -1y = -3y(y + -3) (-8 * -5 + 2y * -5) + -1y = -3y(y + -3) (40 + -10y) + -1y = -3y(y + -3) Combine like terms: -10y + -1y = -11y 40 + -11y = -3y(y + -3) Reorder the terms: 40 + -11y = -3y(-3 + y) 40 + -11y = (-3 * -3y + y * -3y) 40 + -11y = (9y + -3y2) Solving 40 + -11y = 9y + -3y2 Solving for variable 'y'. Combine like terms: -11y + -9y = -20y 40 + -20y + 3y2 = 9y + -3y2 + -9y + 3y2 Reorder the terms: 40 + -20y + 3y2 = 9y + -9y + -3y2 + 3y2 Combine like terms: 9y + -9y = 0 40 + -20y + 3y2 = 0 + -3y2 + 3y2 40 + -20y + 3y2 = -3y2 + 3y2 Combine like terms: -3y2 + 3y2 = 0 40 + -20y + 3y2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 13.33333333 + -6.666666667y + y2 = 0 Move the constant term to the right: Add '-13.33333333' to each side of the equation. 13.33333333 + -6.666666667y + -13.33333333 + y2 = 0 + -13.33333333 Reorder the terms: 13.33333333 + -13.33333333 + -6.666666667y + y2 = 0 + -13.33333333 Combine like terms: 13.33333333 + -13.33333333 = 0.00000000 0.00000000 + -6.666666667y + y2 = 0 + -13.33333333 -6.666666667y + y2 = 0 + -13.33333333 Combine like terms: 0 + -13.33333333 = -13.33333333 -6.666666667y + y2 = -13.33333333 The y term is -6.666666667y. Take half its coefficient (-3.333333334). Square it (11.11111112) and add it to both sides. Add '11.11111112' to each side of the equation. -6.666666667y + 11.11111112 + y2 = -13.33333333 + 11.11111112 Reorder the terms: 11.11111112 + -6.666666667y + y2 = -13.33333333 + 11.11111112 Combine like terms: -13.33333333 + 11.11111112 = -2.22222221 11.11111112 + -6.666666667y + y2 = -2.22222221 Factor a perfect square on the left side: (y + -3.333333334)(y + -3.333333334) = -2.22222221 Can't calculate square root of the right side. The solution to this equation could not be determined.
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