-4y(3y-5)-y=-4(y-5)

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


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

Reorder the terms:
-4y(-5 + 3y) + -1y = -4(y + -5)
(-5 * -4y + 3y * -4y) + -1y = -4(y + -5)
(20y + -12y2) + -1y = -4(y + -5)

Reorder the terms:
20y + -1y + -12y2 = -4(y + -5)

Combine like terms: 20y + -1y = 19y
19y + -12y2 = -4(y + -5)

Reorder the terms:
19y + -12y2 = -4(-5 + y)
19y + -12y2 = (-5 * -4 + y * -4)
19y + -12y2 = (20 + -4y)

Solving
19y + -12y2 = 20 + -4y

Solving for variable 'y'.

Reorder the terms:
-20 + 19y + 4y + -12y2 = 20 + -4y + -20 + 4y

Combine like terms: 19y + 4y = 23y
-20 + 23y + -12y2 = 20 + -4y + -20 + 4y

Reorder the terms:
-20 + 23y + -12y2 = 20 + -20 + -4y + 4y

Combine like terms: 20 + -20 = 0
-20 + 23y + -12y2 = 0 + -4y + 4y
-20 + 23y + -12y2 = -4y + 4y

Combine like terms: -4y + 4y = 0
-20 + 23y + -12y2 = 0

Begin completing the square.  Divide all terms by
-12 the coefficient of the squared term: 

Divide each side by '-12'.
1.666666667 + -1.916666667y + y2 = 0

Move the constant term to the right:

Add '-1.666666667' to each side of the equation.
1.666666667 + -1.916666667y + -1.666666667 + y2 = 0 + -1.666666667

Reorder the terms:
1.666666667 + -1.666666667 + -1.916666667y + y2 = 0 + -1.666666667

Combine like terms: 1.666666667 + -1.666666667 = 0.000000000
0.000000000 + -1.916666667y + y2 = 0 + -1.666666667
-1.916666667y + y2 = 0 + -1.666666667

Combine like terms: 0 + -1.666666667 = -1.666666667
-1.916666667y + y2 = -1.666666667

The y term is -1.916666667y.  Take half its coefficient (-0.9583333335).
Square it (0.9184027781) and add it to both sides.

Add '0.9184027781' to each side of the equation.
-1.916666667y + 0.9184027781 + y2 = -1.666666667 + 0.9184027781

Reorder the terms:
0.9184027781 + -1.916666667y + y2 = -1.666666667 + 0.9184027781

Combine like terms: -1.666666667 + 0.9184027781 = -0.7482638889
0.9184027781 + -1.916666667y + y2 = -0.7482638889

Factor a perfect square on the left side:
(y + -0.9583333335)(y + -0.9583333335) = -0.7482638889

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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