7y^2-y+8=0

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


Simplifying
7y2 + -1y + 8 = 0

Reorder the terms:
8 + -1y + 7y2 = 0

Solving
8 + -1y + 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 + -0.1428571429y + y2 = 0

Move the constant term to the right:

Add '-1.142857143' to each side of the equation.
1.142857143 + -0.1428571429y + -1.142857143 + y2 = 0 + -1.142857143

Reorder the terms:
1.142857143 + -1.142857143 + -0.1428571429y + y2 = 0 + -1.142857143

Combine like terms: 1.142857143 + -1.142857143 = 0.000000000
0.000000000 + -0.1428571429y + y2 = 0 + -1.142857143
-0.1428571429y + y2 = 0 + -1.142857143

Combine like terms: 0 + -1.142857143 = -1.142857143
-0.1428571429y + y2 = -1.142857143

The y term is -0.1428571429y.  Take half its coefficient (-0.07142857145).
Square it (0.005102040819) and add it to both sides.

Add '0.005102040819' to each side of the equation.
-0.1428571429y + 0.005102040819 + y2 = -1.142857143 + 0.005102040819

Reorder the terms:
0.005102040819 + -0.1428571429y + y2 = -1.142857143 + 0.005102040819

Combine like terms: -1.142857143 + 0.005102040819 = -1.137755102181
0.005102040819 + -0.1428571429y + y2 = -1.137755102181

Factor a perfect square on the left side:
(y + -0.07142857145)(y + -0.07142857145) = -1.137755102181

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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