2y^2-9y+18=y^2-36

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Solution for 2y^2-9y+18=y^2-36 equation:


Simplifying
2y2 + -9y + 18 = y2 + -36

Reorder the terms:
18 + -9y + 2y2 = y2 + -36

Reorder the terms:
18 + -9y + 2y2 = -36 + y2

Solving
18 + -9y + 2y2 = -36 + y2

Solving for variable 'y'.

Reorder the terms:
18 + 36 + -9y + 2y2 + -1y2 = -36 + y2 + 36 + -1y2

Combine like terms: 18 + 36 = 54
54 + -9y + 2y2 + -1y2 = -36 + y2 + 36 + -1y2

Combine like terms: 2y2 + -1y2 = 1y2
54 + -9y + 1y2 = -36 + y2 + 36 + -1y2

Reorder the terms:
54 + -9y + 1y2 = -36 + 36 + y2 + -1y2

Combine like terms: -36 + 36 = 0
54 + -9y + 1y2 = 0 + y2 + -1y2
54 + -9y + 1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
54 + -9y + 1y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-54' to each side of the equation.
54 + -9y + -54 + y2 = 0 + -54

Reorder the terms:
54 + -54 + -9y + y2 = 0 + -54

Combine like terms: 54 + -54 = 0
0 + -9y + y2 = 0 + -54
-9y + y2 = 0 + -54

Combine like terms: 0 + -54 = -54
-9y + y2 = -54

The y term is -9y.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9y + 20.25 + y2 = -54 + 20.25

Reorder the terms:
20.25 + -9y + y2 = -54 + 20.25

Combine like terms: -54 + 20.25 = -33.75
20.25 + -9y + y2 = -33.75

Factor a perfect square on the left side:
(y + -4.5)(y + -4.5) = -33.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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