3y^2-7y+7=0

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Solution for 3y^2-7y+7=0 equation: 


Simplifying
3y2 + -7y + 7 = 0

Reorder the terms:
7 + -7y + 3y2 = 0

Solving
7 + -7y + 3y2 = 0

Solving for variable 'y'.

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

Divide each side by '3'.
2.333333333 + -2.333333333y + y2 = 0

Move the constant term to the right:

Add '-2.333333333' to each side of the equation.
2.333333333 + -2.333333333y + -2.333333333 + y2 = 0 + -2.333333333

Reorder the terms:
2.333333333 + -2.333333333 + -2.333333333y + y2 = 0 + -2.333333333

Combine like terms: 2.333333333 + -2.333333333 = 0.000000000
0.000000000 + -2.333333333y + y2 = 0 + -2.333333333
-2.333333333y + y2 = 0 + -2.333333333

Combine like terms: 0 + -2.333333333 = -2.333333333
-2.333333333y + y2 = -2.333333333

The y term is -2.333333333y.  Take half its coefficient (-1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
-2.333333333y + 1.361111112 + y2 = -2.333333333 + 1.361111112

Reorder the terms:
1.361111112 + -2.333333333y + y2 = -2.333333333 + 1.361111112

Combine like terms: -2.333333333 + 1.361111112 = -0.972222221
1.361111112 + -2.333333333y + y2 = -0.972222221

Factor a perfect square on the left side:
(y + -1.166666667)(y + -1.166666667) = -0.972222221

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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