8y^2-18y+13=0

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Solution for 8y^2-18y+13=0 equation:


Simplifying
8y2 + -18y + 13 = 0

Reorder the terms:
13 + -18y + 8y2 = 0

Solving
13 + -18y + 8y2 = 0

Solving for variable 'y'.

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

Divide each side by '8'.
1.625 + -2.25y + y2 = 0

Move the constant term to the right:

Add '-1.625' to each side of the equation.
1.625 + -2.25y + -1.625 + y2 = 0 + -1.625

Reorder the terms:
1.625 + -1.625 + -2.25y + y2 = 0 + -1.625

Combine like terms: 1.625 + -1.625 = 0.000
0.000 + -2.25y + y2 = 0 + -1.625
-2.25y + y2 = 0 + -1.625

Combine like terms: 0 + -1.625 = -1.625
-2.25y + y2 = -1.625

The y term is -2.25y.  Take half its coefficient (-1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
-2.25y + 1.265625 + y2 = -1.625 + 1.265625

Reorder the terms:
1.265625 + -2.25y + y2 = -1.625 + 1.265625

Combine like terms: -1.625 + 1.265625 = -0.359375
1.265625 + -2.25y + y2 = -0.359375

Factor a perfect square on the left side:
(y + -1.125)(y + -1.125) = -0.359375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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