2y^2-y=-10

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Solution for 2y^2-y=-10 equation:


Simplifying
2y2 + -1y = -10

Reorder the terms:
-1y + 2y2 = -10

Solving
-1y + 2y2 = -10

Solving for variable 'y'.

Reorder the terms:
10 + -1y + 2y2 = -10 + 10

Combine like terms: -10 + 10 = 0
10 + -1y + 2y2 = 0

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

Divide each side by '2'.
5 + -0.5y + y2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -0.5y + -5 + y2 = 0 + -5

Reorder the terms:
5 + -5 + -0.5y + y2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -0.5y + y2 = 0 + -5
-0.5y + y2 = 0 + -5

Combine like terms: 0 + -5 = -5
-0.5y + y2 = -5

The y term is -0.5y.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5y + 0.0625 + y2 = -5 + 0.0625

Reorder the terms:
0.0625 + -0.5y + y2 = -5 + 0.0625

Combine like terms: -5 + 0.0625 = -4.9375
0.0625 + -0.5y + y2 = -4.9375

Factor a perfect square on the left side:
(y + -0.25)(y + -0.25) = -4.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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