-2y^2+y=-29

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Solution for -2y^2+y=-29 equation:


Simplifying
-2y2 + y = -29

Reorder the terms:
y + -2y2 = -29

Solving
y + -2y2 = -29

Solving for variable 'y'.

Reorder the terms:
29 + y + -2y2 = -29 + 29

Combine like terms: -29 + 29 = 0
29 + y + -2y2 = 0

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

Divide each side by '-2'.
-14.5 + -0.5y + y2 = 0

Move the constant term to the right:

Add '14.5' to each side of the equation.
-14.5 + -0.5y + 14.5 + y2 = 0 + 14.5

Reorder the terms:
-14.5 + 14.5 + -0.5y + y2 = 0 + 14.5

Combine like terms: -14.5 + 14.5 = 0.0
0.0 + -0.5y + y2 = 0 + 14.5
-0.5y + y2 = 0 + 14.5

Combine like terms: 0 + 14.5 = 14.5
-0.5y + y2 = 14.5

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

Add '0.25' to each side of the equation.
-0.5y + 0.25 + y2 = 14.5 + 0.25

Reorder the terms:
0.25 + -0.5y + y2 = 14.5 + 0.25

Combine like terms: 14.5 + 0.25 = 14.75
0.25 + -0.5y + y2 = 14.75

Factor a perfect square on the left side:
(y + 0.5)(y + 0.5) = 14.75

Calculate the square root of the right side: 3.840572874

Break this problem into two subproblems by setting 
(y + 0.5) equal to 3.840572874 and -3.840572874.

Subproblem 1

y + 0.5 = 3.840572874 Simplifying y + 0.5 = 3.840572874 Reorder the terms: 0.5 + y = 3.840572874 Solving 0.5 + y = 3.840572874 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + y = 3.840572874 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + y = 3.840572874 + -0.5 y = 3.840572874 + -0.5 Combine like terms: 3.840572874 + -0.5 = 3.340572874 y = 3.340572874 Simplifying y = 3.340572874

Subproblem 2

y + 0.5 = -3.840572874 Simplifying y + 0.5 = -3.840572874 Reorder the terms: 0.5 + y = -3.840572874 Solving 0.5 + y = -3.840572874 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + y = -3.840572874 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + y = -3.840572874 + -0.5 y = -3.840572874 + -0.5 Combine like terms: -3.840572874 + -0.5 = -4.340572874 y = -4.340572874 Simplifying y = -4.340572874

Solution

The solution to the problem is based on the solutions from the subproblems. y = {3.340572874, -4.340572874}

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