2(4y-5)-(3y+6)=2y(y+3)

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Solution for 2(4y-5)-(3y+6)=2y(y+3) equation:


Simplifying
2(4y + -5) + -1(3y + 6) = 2y(y + 3)

Reorder the terms:
2(-5 + 4y) + -1(3y + 6) = 2y(y + 3)
(-5 * 2 + 4y * 2) + -1(3y + 6) = 2y(y + 3)
(-10 + 8y) + -1(3y + 6) = 2y(y + 3)

Reorder the terms:
-10 + 8y + -1(6 + 3y) = 2y(y + 3)
-10 + 8y + (6 * -1 + 3y * -1) = 2y(y + 3)
-10 + 8y + (-6 + -3y) = 2y(y + 3)

Reorder the terms:
-10 + -6 + 8y + -3y = 2y(y + 3)

Combine like terms: -10 + -6 = -16
-16 + 8y + -3y = 2y(y + 3)

Combine like terms: 8y + -3y = 5y
-16 + 5y = 2y(y + 3)

Reorder the terms:
-16 + 5y = 2y(3 + y)
-16 + 5y = (3 * 2y + y * 2y)
-16 + 5y = (6y + 2y2)

Solving
-16 + 5y = 6y + 2y2

Solving for variable 'y'.

Combine like terms: 5y + -6y = -1y
-16 + -1y + -2y2 = 6y + 2y2 + -6y + -2y2

Reorder the terms:
-16 + -1y + -2y2 = 6y + -6y + 2y2 + -2y2

Combine like terms: 6y + -6y = 0
-16 + -1y + -2y2 = 0 + 2y2 + -2y2
-16 + -1y + -2y2 = 2y2 + -2y2

Combine like terms: 2y2 + -2y2 = 0
-16 + -1y + -2y2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(16 + y + 2y2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(16 + y + 2y2)' equal to zero and attempt to solve: Simplifying 16 + y + 2y2 = 0 Solving 16 + y + 2y2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 8 + 0.5y + y2 = 0 Move the constant term to the right: Add '-8' to each side of the equation. 8 + 0.5y + -8 + y2 = 0 + -8 Reorder the terms: 8 + -8 + 0.5y + y2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 0.5y + y2 = 0 + -8 0.5y + y2 = 0 + -8 Combine like terms: 0 + -8 = -8 0.5y + y2 = -8 The y term is y. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.5y + 0.25 + y2 = -8 + 0.25 Reorder the terms: 0.25 + 0.5y + y2 = -8 + 0.25 Combine like terms: -8 + 0.25 = -7.75 0.25 + 0.5y + y2 = -7.75 Factor a perfect square on the left side: (y + 0.5)(y + 0.5) = -7.75 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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