581+840y+295y^2=0

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Solution for 581+840y+295y^2=0 equation:


Simplifying
581 + 840y + 295y2 = 0

Solving
581 + 840y + 295y2 = 0

Solving for variable 'y'.

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

Divide each side by '295'.
1.969491525 + 2.847457627y + y2 = 0

Move the constant term to the right:

Add '-1.969491525' to each side of the equation.
1.969491525 + 2.847457627y + -1.969491525 + y2 = 0 + -1.969491525

Reorder the terms:
1.969491525 + -1.969491525 + 2.847457627y + y2 = 0 + -1.969491525

Combine like terms: 1.969491525 + -1.969491525 = 0.000000000
0.000000000 + 2.847457627y + y2 = 0 + -1.969491525
2.847457627y + y2 = 0 + -1.969491525

Combine like terms: 0 + -1.969491525 = -1.969491525
2.847457627y + y2 = -1.969491525

The y term is 2.847457627y.  Take half its coefficient (1.423728814).
Square it (2.027003736) and add it to both sides.

Add '2.027003736' to each side of the equation.
2.847457627y + 2.027003736 + y2 = -1.969491525 + 2.027003736

Reorder the terms:
2.027003736 + 2.847457627y + y2 = -1.969491525 + 2.027003736

Combine like terms: -1.969491525 + 2.027003736 = 0.057512211
2.027003736 + 2.847457627y + y2 = 0.057512211

Factor a perfect square on the left side:
(y + 1.423728814)(y + 1.423728814) = 0.057512211

Calculate the square root of the right side: 0.239817037

Break this problem into two subproblems by setting 
(y + 1.423728814) equal to 0.239817037 and -0.239817037.

Subproblem 1

y + 1.423728814 = 0.239817037 Simplifying y + 1.423728814 = 0.239817037 Reorder the terms: 1.423728814 + y = 0.239817037 Solving 1.423728814 + y = 0.239817037 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1.423728814' to each side of the equation. 1.423728814 + -1.423728814 + y = 0.239817037 + -1.423728814 Combine like terms: 1.423728814 + -1.423728814 = 0.000000000 0.000000000 + y = 0.239817037 + -1.423728814 y = 0.239817037 + -1.423728814 Combine like terms: 0.239817037 + -1.423728814 = -1.183911777 y = -1.183911777 Simplifying y = -1.183911777

Subproblem 2

y + 1.423728814 = -0.239817037 Simplifying y + 1.423728814 = -0.239817037 Reorder the terms: 1.423728814 + y = -0.239817037 Solving 1.423728814 + y = -0.239817037 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1.423728814' to each side of the equation. 1.423728814 + -1.423728814 + y = -0.239817037 + -1.423728814 Combine like terms: 1.423728814 + -1.423728814 = 0.000000000 0.000000000 + y = -0.239817037 + -1.423728814 y = -0.239817037 + -1.423728814 Combine like terms: -0.239817037 + -1.423728814 = -1.663545851 y = -1.663545851 Simplifying y = -1.663545851

Solution

The solution to the problem is based on the solutions from the subproblems. y = {-1.183911777, -1.663545851}

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