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Simplifying 12y2 + -3y + 15 = 0 Reorder the terms: 15 + -3y + 12y2 = 0 Solving 15 + -3y + 12y2 = 0 Solving for variable 'y'. Factor out the Greatest Common Factor (GCF), '3'. 3(5 + -1y + 4y2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(5 + -1y + 4y2)' equal to zero and attempt to solve: Simplifying 5 + -1y + 4y2 = 0 Solving 5 + -1y + 4y2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 1.25 + -0.25y + y2 = 0 Move the constant term to the right: Add '-1.25' to each side of the equation. 1.25 + -0.25y + -1.25 + y2 = 0 + -1.25 Reorder the terms: 1.25 + -1.25 + -0.25y + y2 = 0 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + -0.25y + y2 = 0 + -1.25 -0.25y + y2 = 0 + -1.25 Combine like terms: 0 + -1.25 = -1.25 -0.25y + y2 = -1.25 The y term is -0.25y. Take half its coefficient (-0.125). Square it (0.015625) and add it to both sides. Add '0.015625' to each side of the equation. -0.25y + 0.015625 + y2 = -1.25 + 0.015625 Reorder the terms: 0.015625 + -0.25y + y2 = -1.25 + 0.015625 Combine like terms: -1.25 + 0.015625 = -1.234375 0.015625 + -0.25y + y2 = -1.234375 Factor a perfect square on the left side: (y + -0.125)(y + -0.125) = -1.234375 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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