x(1801-x)=2700

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Solution for x(1801-x)=2700 equation:


Simplifying
x(1801 + -1x) = 2700
(1801 * x + -1x * x) = 2700
(1801x + -1x2) = 2700

Solving
1801x + -1x2 = 2700

Solving for variable 'x'.

Reorder the terms:
-2700 + 1801x + -1x2 = 2700 + -2700

Combine like terms: 2700 + -2700 = 0
-2700 + 1801x + -1x2 = 0

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

Divide each side by '-1'.
2700 + -1801x + x2 = 0

Move the constant term to the right:

Add '-2700' to each side of the equation.
2700 + -1801x + -2700 + x2 = 0 + -2700

Reorder the terms:
2700 + -2700 + -1801x + x2 = 0 + -2700

Combine like terms: 2700 + -2700 = 0
0 + -1801x + x2 = 0 + -2700
-1801x + x2 = 0 + -2700

Combine like terms: 0 + -2700 = -2700
-1801x + x2 = -2700

The x term is -1801x.  Take half its coefficient (-900.5).
Square it (810900.25) and add it to both sides.

Add '810900.25' to each side of the equation.
-1801x + 810900.25 + x2 = -2700 + 810900.25

Reorder the terms:
810900.25 + -1801x + x2 = -2700 + 810900.25

Combine like terms: -2700 + 810900.25 = 808200.25
810900.25 + -1801x + x2 = 808200.25

Factor a perfect square on the left side:
(x + -900.5)(x + -900.5) = 808200.25

Calculate the square root of the right side: 898.99958287

Break this problem into two subproblems by setting 
(x + -900.5) equal to 898.99958287 and -898.99958287.

Subproblem 1

x + -900.5 = 898.99958287 Simplifying x + -900.5 = 898.99958287 Reorder the terms: -900.5 + x = 898.99958287 Solving -900.5 + x = 898.99958287 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '900.5' to each side of the equation. -900.5 + 900.5 + x = 898.99958287 + 900.5 Combine like terms: -900.5 + 900.5 = 0.0 0.0 + x = 898.99958287 + 900.5 x = 898.99958287 + 900.5 Combine like terms: 898.99958287 + 900.5 = 1799.49958287 x = 1799.49958287 Simplifying x = 1799.49958287

Subproblem 2

x + -900.5 = -898.99958287 Simplifying x + -900.5 = -898.99958287 Reorder the terms: -900.5 + x = -898.99958287 Solving -900.5 + x = -898.99958287 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '900.5' to each side of the equation. -900.5 + 900.5 + x = -898.99958287 + 900.5 Combine like terms: -900.5 + 900.5 = 0.0 0.0 + x = -898.99958287 + 900.5 x = -898.99958287 + 900.5 Combine like terms: -898.99958287 + 900.5 = 1.50041713 x = 1.50041713 Simplifying x = 1.50041713

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1799.49958287, 1.50041713}

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