141y-y^2-260=0

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Solution for 141y-y^2-260=0 equation:


Simplifying
141y + -1y2 + -260 = 0

Reorder the terms:
-260 + 141y + -1y2 = 0

Solving
-260 + 141y + -1y2 = 0

Solving for variable 'y'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
260 + -141y + y2 = 0

Move the constant term to the right:

Add '-260' to each side of the equation.
260 + -141y + -260 + y2 = 0 + -260

Reorder the terms:
260 + -260 + -141y + y2 = 0 + -260

Combine like terms: 260 + -260 = 0
0 + -141y + y2 = 0 + -260
-141y + y2 = 0 + -260

Combine like terms: 0 + -260 = -260
-141y + y2 = -260

The y term is -141y.  Take half its coefficient (-70.5).
Square it (4970.25) and add it to both sides.

Add '4970.25' to each side of the equation.
-141y + 4970.25 + y2 = -260 + 4970.25

Reorder the terms:
4970.25 + -141y + y2 = -260 + 4970.25

Combine like terms: -260 + 4970.25 = 4710.25
4970.25 + -141y + y2 = 4710.25

Factor a perfect square on the left side:
(y + -70.5)(y + -70.5) = 4710.25

Calculate the square root of the right side: 68.631261099

Break this problem into two subproblems by setting 
(y + -70.5) equal to 68.631261099 and -68.631261099.

Subproblem 1

y + -70.5 = 68.631261099 Simplifying y + -70.5 = 68.631261099 Reorder the terms: -70.5 + y = 68.631261099 Solving -70.5 + y = 68.631261099 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '70.5' to each side of the equation. -70.5 + 70.5 + y = 68.631261099 + 70.5 Combine like terms: -70.5 + 70.5 = 0.0 0.0 + y = 68.631261099 + 70.5 y = 68.631261099 + 70.5 Combine like terms: 68.631261099 + 70.5 = 139.131261099 y = 139.131261099 Simplifying y = 139.131261099

Subproblem 2

y + -70.5 = -68.631261099 Simplifying y + -70.5 = -68.631261099 Reorder the terms: -70.5 + y = -68.631261099 Solving -70.5 + y = -68.631261099 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '70.5' to each side of the equation. -70.5 + 70.5 + y = -68.631261099 + 70.5 Combine like terms: -70.5 + 70.5 = 0.0 0.0 + y = -68.631261099 + 70.5 y = -68.631261099 + 70.5 Combine like terms: -68.631261099 + 70.5 = 1.868738901 y = 1.868738901 Simplifying y = 1.868738901

Solution

The solution to the problem is based on the solutions from the subproblems. y = {139.131261099, 1.868738901}

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