7y^2-8y+8=0

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Solution for 7y^2-8y+8=0 equation:


Simplifying
7y2 + -8y + 8 = 0

Reorder the terms:
8 + -8y + 7y2 = 0

Solving
8 + -8y + 7y2 = 0

Solving for variable 'y'.

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

Divide each side by '7'.
1.142857143 + -1.142857143y + y2 = 0

Move the constant term to the right:

Add '-1.142857143' to each side of the equation.
1.142857143 + -1.142857143y + -1.142857143 + y2 = 0 + -1.142857143

Reorder the terms:
1.142857143 + -1.142857143 + -1.142857143y + y2 = 0 + -1.142857143

Combine like terms: 1.142857143 + -1.142857143 = 0.000000000
0.000000000 + -1.142857143y + y2 = 0 + -1.142857143
-1.142857143y + y2 = 0 + -1.142857143

Combine like terms: 0 + -1.142857143 = -1.142857143
-1.142857143y + y2 = -1.142857143

The y term is -1.142857143y.  Take half its coefficient (-0.5714285715).
Square it (0.3265306123) and add it to both sides.

Add '0.3265306123' to each side of the equation.
-1.142857143y + 0.3265306123 + y2 = -1.142857143 + 0.3265306123

Reorder the terms:
0.3265306123 + -1.142857143y + y2 = -1.142857143 + 0.3265306123

Combine like terms: -1.142857143 + 0.3265306123 = -0.8163265307
0.3265306123 + -1.142857143y + y2 = -0.8163265307

Factor a perfect square on the left side:
(y + -0.5714285715)(y + -0.5714285715) = -0.8163265307

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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