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Simplifying -8y2 + -6y + -10 = 0 Reorder the terms: -10 + -6y + -8y2 = 0 Solving -10 + -6y + -8y2 = 0 Solving for variable 'y'. Factor out the Greatest Common Factor (GCF), '-2'. -2(5 + 3y + 4y2) = 0 Ignore the factor -2.Subproblem 1
Set the factor '(5 + 3y + 4y2)' equal to zero and attempt to solve: Simplifying 5 + 3y + 4y2 = 0 Solving 5 + 3y + 4y2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 1.25 + 0.75y + y2 = 0 Move the constant term to the right: Add '-1.25' to each side of the equation. 1.25 + 0.75y + -1.25 + y2 = 0 + -1.25 Reorder the terms: 1.25 + -1.25 + 0.75y + y2 = 0 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + 0.75y + y2 = 0 + -1.25 0.75y + y2 = 0 + -1.25 Combine like terms: 0 + -1.25 = -1.25 0.75y + y2 = -1.25 The y term is 0.75y. Take half its coefficient (0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. 0.75y + 0.140625 + y2 = -1.25 + 0.140625 Reorder the terms: 0.140625 + 0.75y + y2 = -1.25 + 0.140625 Combine like terms: -1.25 + 0.140625 = -1.109375 0.140625 + 0.75y + y2 = -1.109375 Factor a perfect square on the left side: (y + 0.375)(y + 0.375) = -1.109375 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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