x*(x-38)=180

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Solution for x*(x-38)=180 equation:


Simplifying
x(x + -38) = 180

Reorder the terms:
x(-38 + x) = 180
(-38 * x + x * x) = 180
(-38x + x2) = 180

Solving
-38x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
-180 + -38x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-180 + -38x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '180' to each side of the equation.
-180 + -38x + 180 + x2 = 0 + 180

Reorder the terms:
-180 + 180 + -38x + x2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + -38x + x2 = 0 + 180
-38x + x2 = 0 + 180

Combine like terms: 0 + 180 = 180
-38x + x2 = 180

The x term is -38x.  Take half its coefficient (-19).
Square it (361) and add it to both sides.

Add '361' to each side of the equation.
-38x + 361 + x2 = 180 + 361

Reorder the terms:
361 + -38x + x2 = 180 + 361

Combine like terms: 180 + 361 = 541
361 + -38x + x2 = 541

Factor a perfect square on the left side:
(x + -19)(x + -19) = 541

Calculate the square root of the right side: 23.259406699

Break this problem into two subproblems by setting 
(x + -19) equal to 23.259406699 and -23.259406699.

Subproblem 1

x + -19 = 23.259406699 Simplifying x + -19 = 23.259406699 Reorder the terms: -19 + x = 23.259406699 Solving -19 + x = 23.259406699 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + x = 23.259406699 + 19 Combine like terms: -19 + 19 = 0 0 + x = 23.259406699 + 19 x = 23.259406699 + 19 Combine like terms: 23.259406699 + 19 = 42.259406699 x = 42.259406699 Simplifying x = 42.259406699

Subproblem 2

x + -19 = -23.259406699 Simplifying x + -19 = -23.259406699 Reorder the terms: -19 + x = -23.259406699 Solving -19 + x = -23.259406699 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + x = -23.259406699 + 19 Combine like terms: -19 + 19 = 0 0 + x = -23.259406699 + 19 x = -23.259406699 + 19 Combine like terms: -23.259406699 + 19 = -4.259406699 x = -4.259406699 Simplifying x = -4.259406699

Solution

The solution to the problem is based on the solutions from the subproblems. x = {42.259406699, -4.259406699}

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