(4y^2-6y-1)+(3y^2-2y+7)=

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Solution for (4y^2-6y-1)+(3y^2-2y+7)= equation:


Simplifying
(4y2 + -6y + -1) + (3y2 + -2y + 7) = 0

Reorder the terms:
(-1 + -6y + 4y2) + (3y2 + -2y + 7) = 0

Remove parenthesis around (-1 + -6y + 4y2)
-1 + -6y + 4y2 + (3y2 + -2y + 7) = 0

Reorder the terms:
-1 + -6y + 4y2 + (7 + -2y + 3y2) = 0

Remove parenthesis around (7 + -2y + 3y2)
-1 + -6y + 4y2 + 7 + -2y + 3y2 = 0

Reorder the terms:
-1 + 7 + -6y + -2y + 4y2 + 3y2 = 0

Combine like terms: -1 + 7 = 6
6 + -6y + -2y + 4y2 + 3y2 = 0

Combine like terms: -6y + -2y = -8y
6 + -8y + 4y2 + 3y2 = 0

Combine like terms: 4y2 + 3y2 = 7y2
6 + -8y + 7y2 = 0

Solving
6 + -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'.
0.8571428571 + -1.142857143y + y2 = 0

Move the constant term to the right:

Add '-0.8571428571' to each side of the equation.
0.8571428571 + -1.142857143y + -0.8571428571 + y2 = 0 + -0.8571428571

Reorder the terms:
0.8571428571 + -0.8571428571 + -1.142857143y + y2 = 0 + -0.8571428571

Combine like terms: 0.8571428571 + -0.8571428571 = 0.0000000000
0.0000000000 + -1.142857143y + y2 = 0 + -0.8571428571
-1.142857143y + y2 = 0 + -0.8571428571

Combine like terms: 0 + -0.8571428571 = -0.8571428571
-1.142857143y + y2 = -0.8571428571

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 = -0.8571428571 + 0.3265306123

Reorder the terms:
0.3265306123 + -1.142857143y + y2 = -0.8571428571 + 0.3265306123

Combine like terms: -0.8571428571 + 0.3265306123 = -0.5306122448
0.3265306123 + -1.142857143y + y2 = -0.5306122448

Factor a perfect square on the left side:
(y + -0.5714285715)(y + -0.5714285715) = -0.5306122448

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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