y^2-36y-1600=0

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Solution for y^2-36y-1600=0 equation:


Simplifying
y2 + -36y + -1600 = 0

Reorder the terms:
-1600 + -36y + y2 = 0

Solving
-1600 + -36y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '1600' to each side of the equation.
-1600 + -36y + 1600 + y2 = 0 + 1600

Reorder the terms:
-1600 + 1600 + -36y + y2 = 0 + 1600

Combine like terms: -1600 + 1600 = 0
0 + -36y + y2 = 0 + 1600
-36y + y2 = 0 + 1600

Combine like terms: 0 + 1600 = 1600
-36y + y2 = 1600

The y term is -36y.  Take half its coefficient (-18).
Square it (324) and add it to both sides.

Add '324' to each side of the equation.
-36y + 324 + y2 = 1600 + 324

Reorder the terms:
324 + -36y + y2 = 1600 + 324

Combine like terms: 1600 + 324 = 1924
324 + -36y + y2 = 1924

Factor a perfect square on the left side:
(y + -18)(y + -18) = 1924

Calculate the square root of the right side: 43.863424399

Break this problem into two subproblems by setting 
(y + -18) equal to 43.863424399 and -43.863424399.

Subproblem 1

y + -18 = 43.863424399 Simplifying y + -18 = 43.863424399 Reorder the terms: -18 + y = 43.863424399 Solving -18 + y = 43.863424399 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + y = 43.863424399 + 18 Combine like terms: -18 + 18 = 0 0 + y = 43.863424399 + 18 y = 43.863424399 + 18 Combine like terms: 43.863424399 + 18 = 61.863424399 y = 61.863424399 Simplifying y = 61.863424399

Subproblem 2

y + -18 = -43.863424399 Simplifying y + -18 = -43.863424399 Reorder the terms: -18 + y = -43.863424399 Solving -18 + y = -43.863424399 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + y = -43.863424399 + 18 Combine like terms: -18 + 18 = 0 0 + y = -43.863424399 + 18 y = -43.863424399 + 18 Combine like terms: -43.863424399 + 18 = -25.863424399 y = -25.863424399 Simplifying y = -25.863424399

Solution

The solution to the problem is based on the solutions from the subproblems. y = {61.863424399, -25.863424399}

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