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Simplifying 8y2 + 12y + 20 = 0 Reorder the terms: 20 + 12y + 8y2 = 0 Solving 20 + 12y + 8y2 = 0 Solving for variable 'y'. Factor out the Greatest Common Factor (GCF), '4'. 4(5 + 3y + 2y2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(5 + 3y + 2y2)' equal to zero and attempt to solve: Simplifying 5 + 3y + 2y2 = 0 Solving 5 + 3y + 2y2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 2.5 + 1.5y + y2 = 0 Move the constant term to the right: Add '-2.5' to each side of the equation. 2.5 + 1.5y + -2.5 + y2 = 0 + -2.5 Reorder the terms: 2.5 + -2.5 + 1.5y + y2 = 0 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + 1.5y + y2 = 0 + -2.5 1.5y + y2 = 0 + -2.5 Combine like terms: 0 + -2.5 = -2.5 1.5y + y2 = -2.5 The y term is 1.5y. Take half its coefficient (0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. 1.5y + 0.5625 + y2 = -2.5 + 0.5625 Reorder the terms: 0.5625 + 1.5y + y2 = -2.5 + 0.5625 Combine like terms: -2.5 + 0.5625 = -1.9375 0.5625 + 1.5y + y2 = -1.9375 Factor a perfect square on the left side: (y + 0.75)(y + 0.75) = -1.9375 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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