7y^2+12y-5=-14

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Solution for 7y^2+12y-5=-14 equation:


Simplifying
7y2 + 12y + -5 = -14

Reorder the terms:
-5 + 12y + 7y2 = -14

Solving
-5 + 12y + 7y2 = -14

Solving for variable 'y'.

Reorder the terms:
-5 + 14 + 12y + 7y2 = -14 + 14

Combine like terms: -5 + 14 = 9
9 + 12y + 7y2 = -14 + 14

Combine like terms: -14 + 14 = 0
9 + 12y + 7y2 = 0

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

Divide each side by '7'.
1.285714286 + 1.714285714y + y2 = 0

Move the constant term to the right:

Add '-1.285714286' to each side of the equation.
1.285714286 + 1.714285714y + -1.285714286 + y2 = 0 + -1.285714286

Reorder the terms:
1.285714286 + -1.285714286 + 1.714285714y + y2 = 0 + -1.285714286

Combine like terms: 1.285714286 + -1.285714286 = 0.000000000
0.000000000 + 1.714285714y + y2 = 0 + -1.285714286
1.714285714y + y2 = 0 + -1.285714286

Combine like terms: 0 + -1.285714286 = -1.285714286
1.714285714y + y2 = -1.285714286

The y term is 1.714285714y.  Take half its coefficient (0.857142857).
Square it (0.7346938773) and add it to both sides.

Add '0.7346938773' to each side of the equation.
1.714285714y + 0.7346938773 + y2 = -1.285714286 + 0.7346938773

Reorder the terms:
0.7346938773 + 1.714285714y + y2 = -1.285714286 + 0.7346938773

Combine like terms: -1.285714286 + 0.7346938773 = -0.5510204087
0.7346938773 + 1.714285714y + y2 = -0.5510204087

Factor a perfect square on the left side:
(y + 0.857142857)(y + 0.857142857) = -0.5510204087

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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