7y^2+4y+5=

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Solution for 7y^2+4y+5= equation:


Simplifying
7y2 + 4y + 5 = 0

Reorder the terms:
5 + 4y + 7y2 = 0

Solving
5 + 4y + 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'.
0.7142857143 + 0.5714285714y + y2 = 0

Move the constant term to the right:

Add '-0.7142857143' to each side of the equation.
0.7142857143 + 0.5714285714y + -0.7142857143 + y2 = 0 + -0.7142857143

Reorder the terms:
0.7142857143 + -0.7142857143 + 0.5714285714y + y2 = 0 + -0.7142857143

Combine like terms: 0.7142857143 + -0.7142857143 = 0.0000000000
0.0000000000 + 0.5714285714y + y2 = 0 + -0.7142857143
0.5714285714y + y2 = 0 + -0.7142857143

Combine like terms: 0 + -0.7142857143 = -0.7142857143
0.5714285714y + y2 = -0.7142857143

The y term is 0.5714285714y.  Take half its coefficient (0.2857142857).
Square it (0.08163265305) and add it to both sides.

Add '0.08163265305' to each side of the equation.
0.5714285714y + 0.08163265305 + y2 = -0.7142857143 + 0.08163265305

Reorder the terms:
0.08163265305 + 0.5714285714y + y2 = -0.7142857143 + 0.08163265305

Combine like terms: -0.7142857143 + 0.08163265305 = -0.63265306125
0.08163265305 + 0.5714285714y + y2 = -0.63265306125

Factor a perfect square on the left side:
(y + 0.2857142857)(y + 0.2857142857) = -0.63265306125

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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