(6y^2-2y+5)+(-3y^2+y+7)=

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Solution for (6y^2-2y+5)+(-3y^2+y+7)= equation:


Simplifying
(6y2 + -2y + 5) + (-3y2 + y + 7) = 0

Reorder the terms:
(5 + -2y + 6y2) + (-3y2 + y + 7) = 0

Remove parenthesis around (5 + -2y + 6y2)
5 + -2y + 6y2 + (-3y2 + y + 7) = 0

Reorder the terms:
5 + -2y + 6y2 + (7 + y + -3y2) = 0

Remove parenthesis around (7 + y + -3y2)
5 + -2y + 6y2 + 7 + y + -3y2 = 0

Reorder the terms:
5 + 7 + -2y + y + 6y2 + -3y2 = 0

Combine like terms: 5 + 7 = 12
12 + -2y + y + 6y2 + -3y2 = 0

Combine like terms: -2y + y = -1y
12 + -1y + 6y2 + -3y2 = 0

Combine like terms: 6y2 + -3y2 = 3y2
12 + -1y + 3y2 = 0

Solving
12 + -1y + 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'.
4 + -0.3333333333y + y2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -0.3333333333y + -4 + y2 = 0 + -4

Reorder the terms:
4 + -4 + -0.3333333333y + y2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -0.3333333333y + y2 = 0 + -4
-0.3333333333y + y2 = 0 + -4

Combine like terms: 0 + -4 = -4
-0.3333333333y + y2 = -4

The y term is -0.3333333333y.  Take half its coefficient (-0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
-0.3333333333y + 0.02777777779 + y2 = -4 + 0.02777777779

Reorder the terms:
0.02777777779 + -0.3333333333y + y2 = -4 + 0.02777777779

Combine like terms: -4 + 0.02777777779 = -3.97222222221
0.02777777779 + -0.3333333333y + y2 = -3.97222222221

Factor a perfect square on the left side:
(y + -0.1666666667)(y + -0.1666666667) = -3.97222222221

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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