5y^2-48y+138=0

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Solution for 5y^2-48y+138=0 equation:


Simplifying
5y2 + -48y + 138 = 0

Reorder the terms:
138 + -48y + 5y2 = 0

Solving
138 + -48y + 5y2 = 0

Solving for variable 'y'.

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

Divide each side by '5'.
27.6 + -9.6y + y2 = 0

Move the constant term to the right:

Add '-27.6' to each side of the equation.
27.6 + -9.6y + -27.6 + y2 = 0 + -27.6

Reorder the terms:
27.6 + -27.6 + -9.6y + y2 = 0 + -27.6

Combine like terms: 27.6 + -27.6 = 0.0
0.0 + -9.6y + y2 = 0 + -27.6
-9.6y + y2 = 0 + -27.6

Combine like terms: 0 + -27.6 = -27.6
-9.6y + y2 = -27.6

The y term is -9.6y.  Take half its coefficient (-4.8).
Square it (23.04) and add it to both sides.

Add '23.04' to each side of the equation.
-9.6y + 23.04 + y2 = -27.6 + 23.04

Reorder the terms:
23.04 + -9.6y + y2 = -27.6 + 23.04

Combine like terms: -27.6 + 23.04 = -4.56
23.04 + -9.6y + y2 = -4.56

Factor a perfect square on the left side:
(y + -4.8)(y + -4.8) = -4.56

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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