x=(60-2x)(45-2x)

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Solution for x=(60-2x)(45-2x) equation:


Simplifying
x = (60 + -2x)(45 + -2x)

Multiply (60 + -2x) * (45 + -2x)
x = (60(45 + -2x) + -2x * (45 + -2x))
x = ((45 * 60 + -2x * 60) + -2x * (45 + -2x))
x = ((2700 + -120x) + -2x * (45 + -2x))
x = (2700 + -120x + (45 * -2x + -2x * -2x))
x = (2700 + -120x + (-90x + 4x2))

Combine like terms: -120x + -90x = -210x
x = (2700 + -210x + 4x2)

Solving
x = 2700 + -210x + 4x2

Solving for variable 'x'.

Reorder the terms:
-2700 + x + 210x + -4x2 = 2700 + -210x + 4x2 + -2700 + 210x + -4x2

Combine like terms: x + 210x = 211x
-2700 + 211x + -4x2 = 2700 + -210x + 4x2 + -2700 + 210x + -4x2

Reorder the terms:
-2700 + 211x + -4x2 = 2700 + -2700 + -210x + 210x + 4x2 + -4x2

Combine like terms: 2700 + -2700 = 0
-2700 + 211x + -4x2 = 0 + -210x + 210x + 4x2 + -4x2
-2700 + 211x + -4x2 = -210x + 210x + 4x2 + -4x2

Combine like terms: -210x + 210x = 0
-2700 + 211x + -4x2 = 0 + 4x2 + -4x2
-2700 + 211x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-2700 + 211x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
675 + -52.75x + x2 = 0

Move the constant term to the right:

Add '-675' to each side of the equation.
675 + -52.75x + -675 + x2 = 0 + -675

Reorder the terms:
675 + -675 + -52.75x + x2 = 0 + -675

Combine like terms: 675 + -675 = 0
0 + -52.75x + x2 = 0 + -675
-52.75x + x2 = 0 + -675

Combine like terms: 0 + -675 = -675
-52.75x + x2 = -675

The x term is -52.75x.  Take half its coefficient (-26.375).
Square it (695.640625) and add it to both sides.

Add '695.640625' to each side of the equation.
-52.75x + 695.640625 + x2 = -675 + 695.640625

Reorder the terms:
695.640625 + -52.75x + x2 = -675 + 695.640625

Combine like terms: -675 + 695.640625 = 20.640625
695.640625 + -52.75x + x2 = 20.640625

Factor a perfect square on the left side:
(x + -26.375)(x + -26.375) = 20.640625

Calculate the square root of the right side: 4.543195461

Break this problem into two subproblems by setting 
(x + -26.375) equal to 4.543195461 and -4.543195461.

Subproblem 1

x + -26.375 = 4.543195461 Simplifying x + -26.375 = 4.543195461 Reorder the terms: -26.375 + x = 4.543195461 Solving -26.375 + x = 4.543195461 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '26.375' to each side of the equation. -26.375 + 26.375 + x = 4.543195461 + 26.375 Combine like terms: -26.375 + 26.375 = 0.000 0.000 + x = 4.543195461 + 26.375 x = 4.543195461 + 26.375 Combine like terms: 4.543195461 + 26.375 = 30.918195461 x = 30.918195461 Simplifying x = 30.918195461

Subproblem 2

x + -26.375 = -4.543195461 Simplifying x + -26.375 = -4.543195461 Reorder the terms: -26.375 + x = -4.543195461 Solving -26.375 + x = -4.543195461 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '26.375' to each side of the equation. -26.375 + 26.375 + x = -4.543195461 + 26.375 Combine like terms: -26.375 + 26.375 = 0.000 0.000 + x = -4.543195461 + 26.375 x = -4.543195461 + 26.375 Combine like terms: -4.543195461 + 26.375 = 21.831804539 x = 21.831804539 Simplifying x = 21.831804539

Solution

The solution to the problem is based on the solutions from the subproblems. x = {30.918195461, 21.831804539}

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