8y^2-28y+60=0

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Solution for 8y^2-28y+60=0 equation:


Simplifying
8y2 + -28y + 60 = 0

Reorder the terms:
60 + -28y + 8y2 = 0

Solving
60 + -28y + 8y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '4'.
4(15 + -7y + 2y2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(15 + -7y + 2y2)' equal to zero and attempt to solve: Simplifying 15 + -7y + 2y2 = 0 Solving 15 + -7y + 2y2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 7.5 + -3.5y + y2 = 0 Move the constant term to the right: Add '-7.5' to each side of the equation. 7.5 + -3.5y + -7.5 + y2 = 0 + -7.5 Reorder the terms: 7.5 + -7.5 + -3.5y + y2 = 0 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + -3.5y + y2 = 0 + -7.5 -3.5y + y2 = 0 + -7.5 Combine like terms: 0 + -7.5 = -7.5 -3.5y + y2 = -7.5 The y term is -3.5y. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5y + 3.0625 + y2 = -7.5 + 3.0625 Reorder the terms: 3.0625 + -3.5y + y2 = -7.5 + 3.0625 Combine like terms: -7.5 + 3.0625 = -4.4375 3.0625 + -3.5y + y2 = -4.4375 Factor a perfect square on the left side: (y + -1.75)(y + -1.75) = -4.4375 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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