(x-45)+x(x-45)+(x-45)+x=540

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Solution for (x-45)+x(x-45)+(x-45)+x=540 equation:


Simplifying
(x + -45) + x(x + -45) + (x + -45) + x = 540

Reorder the terms:
(-45 + x) + x(x + -45) + (x + -45) + x = 540

Remove parenthesis around (-45 + x)
-45 + x + x(x + -45) + (x + -45) + x = 540

Reorder the terms:
-45 + x + x(-45 + x) + (x + -45) + x = 540
-45 + x + (-45 * x + x * x) + (x + -45) + x = 540
-45 + x + (-45x + x2) + (x + -45) + x = 540

Reorder the terms:
-45 + x + -45x + x2 + (-45 + x) + x = 540

Remove parenthesis around (-45 + x)
-45 + x + -45x + x2 + -45 + x + x = 540

Reorder the terms:
-45 + -45 + x + -45x + x + x + x2 = 540

Combine like terms: -45 + -45 = -90
-90 + x + -45x + x + x + x2 = 540

Combine like terms: x + -45x = -44x
-90 + -44x + x + x + x2 = 540

Combine like terms: -44x + x = -43x
-90 + -43x + x + x2 = 540

Combine like terms: -43x + x = -42x
-90 + -42x + x2 = 540

Solving
-90 + -42x + x2 = 540

Solving for variable 'x'.

Reorder the terms:
-90 + -540 + -42x + x2 = 540 + -540

Combine like terms: -90 + -540 = -630
-630 + -42x + x2 = 540 + -540

Combine like terms: 540 + -540 = 0
-630 + -42x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '630' to each side of the equation.
-630 + -42x + 630 + x2 = 0 + 630

Reorder the terms:
-630 + 630 + -42x + x2 = 0 + 630

Combine like terms: -630 + 630 = 0
0 + -42x + x2 = 0 + 630
-42x + x2 = 0 + 630

Combine like terms: 0 + 630 = 630
-42x + x2 = 630

The x term is -42x.  Take half its coefficient (-21).
Square it (441) and add it to both sides.

Add '441' to each side of the equation.
-42x + 441 + x2 = 630 + 441

Reorder the terms:
441 + -42x + x2 = 630 + 441

Combine like terms: 630 + 441 = 1071
441 + -42x + x2 = 1071

Factor a perfect square on the left side:
(x + -21)(x + -21) = 1071

Calculate the square root of the right side: 32.726136344

Break this problem into two subproblems by setting 
(x + -21) equal to 32.726136344 and -32.726136344.

Subproblem 1

x + -21 = 32.726136344 Simplifying x + -21 = 32.726136344 Reorder the terms: -21 + x = 32.726136344 Solving -21 + x = 32.726136344 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + x = 32.726136344 + 21 Combine like terms: -21 + 21 = 0 0 + x = 32.726136344 + 21 x = 32.726136344 + 21 Combine like terms: 32.726136344 + 21 = 53.726136344 x = 53.726136344 Simplifying x = 53.726136344

Subproblem 2

x + -21 = -32.726136344 Simplifying x + -21 = -32.726136344 Reorder the terms: -21 + x = -32.726136344 Solving -21 + x = -32.726136344 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + x = -32.726136344 + 21 Combine like terms: -21 + 21 = 0 0 + x = -32.726136344 + 21 x = -32.726136344 + 21 Combine like terms: -32.726136344 + 21 = -11.726136344 x = -11.726136344 Simplifying x = -11.726136344

Solution

The solution to the problem is based on the solutions from the subproblems. x = {53.726136344, -11.726136344}

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