x^2-45x=200

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Solution for x^2-45x=200 equation:


Simplifying
x2 + -45x = 200

Reorder the terms:
-45x + x2 = 200

Solving
-45x + x2 = 200

Solving for variable 'x'.

Reorder the terms:
-200 + -45x + x2 = 200 + -200

Combine like terms: 200 + -200 = 0
-200 + -45x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '200' to each side of the equation.
-200 + -45x + 200 + x2 = 0 + 200

Reorder the terms:
-200 + 200 + -45x + x2 = 0 + 200

Combine like terms: -200 + 200 = 0
0 + -45x + x2 = 0 + 200
-45x + x2 = 0 + 200

Combine like terms: 0 + 200 = 200
-45x + x2 = 200

The x term is -45x.  Take half its coefficient (-22.5).
Square it (506.25) and add it to both sides.

Add '506.25' to each side of the equation.
-45x + 506.25 + x2 = 200 + 506.25

Reorder the terms:
506.25 + -45x + x2 = 200 + 506.25

Combine like terms: 200 + 506.25 = 706.25
506.25 + -45x + x2 = 706.25

Factor a perfect square on the left side:
(x + -22.5)(x + -22.5) = 706.25

Calculate the square root of the right side: 26.575364532

Break this problem into two subproblems by setting 
(x + -22.5) equal to 26.575364532 and -26.575364532.

Subproblem 1

x + -22.5 = 26.575364532 Simplifying x + -22.5 = 26.575364532 Reorder the terms: -22.5 + x = 26.575364532 Solving -22.5 + x = 26.575364532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '22.5' to each side of the equation. -22.5 + 22.5 + x = 26.575364532 + 22.5 Combine like terms: -22.5 + 22.5 = 0.0 0.0 + x = 26.575364532 + 22.5 x = 26.575364532 + 22.5 Combine like terms: 26.575364532 + 22.5 = 49.075364532 x = 49.075364532 Simplifying x = 49.075364532

Subproblem 2

x + -22.5 = -26.575364532 Simplifying x + -22.5 = -26.575364532 Reorder the terms: -22.5 + x = -26.575364532 Solving -22.5 + x = -26.575364532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '22.5' to each side of the equation. -22.5 + 22.5 + x = -26.575364532 + 22.5 Combine like terms: -22.5 + 22.5 = 0.0 0.0 + x = -26.575364532 + 22.5 x = -26.575364532 + 22.5 Combine like terms: -26.575364532 + 22.5 = -4.075364532 x = -4.075364532 Simplifying x = -4.075364532

Solution

The solution to the problem is based on the solutions from the subproblems. x = {49.075364532, -4.075364532}

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