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Simplifying -2y2 + 10y + -14 = 0 Reorder the terms: -14 + 10y + -2y2 = 0 Solving -14 + 10y + -2y2 = 0 Solving for variable 'y'. Factor out the Greatest Common Factor (GCF), '2'. 2(-7 + 5y + -1y2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-7 + 5y + -1y2)' equal to zero and attempt to solve: Simplifying -7 + 5y + -1y2 = 0 Solving -7 + 5y + -1y2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 7 + -5y + y2 = 0 Move the constant term to the right: Add '-7' to each side of the equation. 7 + -5y + -7 + y2 = 0 + -7 Reorder the terms: 7 + -7 + -5y + y2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -5y + y2 = 0 + -7 -5y + y2 = 0 + -7 Combine like terms: 0 + -7 = -7 -5y + y2 = -7 The y term is -5y. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5y + 6.25 + y2 = -7 + 6.25 Reorder the terms: 6.25 + -5y + y2 = -7 + 6.25 Combine like terms: -7 + 6.25 = -0.75 6.25 + -5y + y2 = -0.75 Factor a perfect square on the left side: (y + -2.5)(y + -2.5) = -0.75 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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