160x-(x*x)=4500

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Solution for 160x-(x*x)=4500 equation:


Simplifying
160x + -1(x * x) = 4500

Multiply x * x
160x + -1(x2) = 4500

Solving
160x + -1x2 = 4500

Solving for variable 'x'.

Reorder the terms:
-4500 + 160x + -1x2 = 4500 + -4500

Combine like terms: 4500 + -4500 = 0
-4500 + 160x + -1x2 = 0

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

Divide each side by '-1'.
4500 + -160x + x2 = 0

Move the constant term to the right:

Add '-4500' to each side of the equation.
4500 + -160x + -4500 + x2 = 0 + -4500

Reorder the terms:
4500 + -4500 + -160x + x2 = 0 + -4500

Combine like terms: 4500 + -4500 = 0
0 + -160x + x2 = 0 + -4500
-160x + x2 = 0 + -4500

Combine like terms: 0 + -4500 = -4500
-160x + x2 = -4500

The x term is -160x.  Take half its coefficient (-80).
Square it (6400) and add it to both sides.

Add '6400' to each side of the equation.
-160x + 6400 + x2 = -4500 + 6400

Reorder the terms:
6400 + -160x + x2 = -4500 + 6400

Combine like terms: -4500 + 6400 = 1900
6400 + -160x + x2 = 1900

Factor a perfect square on the left side:
(x + -80)(x + -80) = 1900

Calculate the square root of the right side: 43.588989435

Break this problem into two subproblems by setting 
(x + -80) equal to 43.588989435 and -43.588989435.

Subproblem 1

x + -80 = 43.588989435 Simplifying x + -80 = 43.588989435 Reorder the terms: -80 + x = 43.588989435 Solving -80 + x = 43.588989435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '80' to each side of the equation. -80 + 80 + x = 43.588989435 + 80 Combine like terms: -80 + 80 = 0 0 + x = 43.588989435 + 80 x = 43.588989435 + 80 Combine like terms: 43.588989435 + 80 = 123.588989435 x = 123.588989435 Simplifying x = 123.588989435

Subproblem 2

x + -80 = -43.588989435 Simplifying x + -80 = -43.588989435 Reorder the terms: -80 + x = -43.588989435 Solving -80 + x = -43.588989435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '80' to each side of the equation. -80 + 80 + x = -43.588989435 + 80 Combine like terms: -80 + 80 = 0 0 + x = -43.588989435 + 80 x = -43.588989435 + 80 Combine like terms: -43.588989435 + 80 = 36.411010565 x = 36.411010565 Simplifying x = 36.411010565

Solution

The solution to the problem is based on the solutions from the subproblems. x = {123.588989435, 36.411010565}

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