y^2-6y-263=0

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Solution for y^2-6y-263=0 equation:


Simplifying
y2 + -6y + -263 = 0

Reorder the terms:
-263 + -6y + y2 = 0

Solving
-263 + -6y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '263' to each side of the equation.
-263 + -6y + 263 + y2 = 0 + 263

Reorder the terms:
-263 + 263 + -6y + y2 = 0 + 263

Combine like terms: -263 + 263 = 0
0 + -6y + y2 = 0 + 263
-6y + y2 = 0 + 263

Combine like terms: 0 + 263 = 263
-6y + y2 = 263

The y term is -6y.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6y + 9 + y2 = 263 + 9

Reorder the terms:
9 + -6y + y2 = 263 + 9

Combine like terms: 263 + 9 = 272
9 + -6y + y2 = 272

Factor a perfect square on the left side:
(y + -3)(y + -3) = 272

Calculate the square root of the right side: 16.492422502

Break this problem into two subproblems by setting 
(y + -3) equal to 16.492422502 and -16.492422502.

Subproblem 1

y + -3 = 16.492422502 Simplifying y + -3 = 16.492422502 Reorder the terms: -3 + y = 16.492422502 Solving -3 + y = 16.492422502 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + y = 16.492422502 + 3 Combine like terms: -3 + 3 = 0 0 + y = 16.492422502 + 3 y = 16.492422502 + 3 Combine like terms: 16.492422502 + 3 = 19.492422502 y = 19.492422502 Simplifying y = 19.492422502

Subproblem 2

y + -3 = -16.492422502 Simplifying y + -3 = -16.492422502 Reorder the terms: -3 + y = -16.492422502 Solving -3 + y = -16.492422502 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + y = -16.492422502 + 3 Combine like terms: -3 + 3 = 0 0 + y = -16.492422502 + 3 y = -16.492422502 + 3 Combine like terms: -16.492422502 + 3 = -13.492422502 y = -13.492422502 Simplifying y = -13.492422502

Solution

The solution to the problem is based on the solutions from the subproblems. y = {19.492422502, -13.492422502}

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