(75+x)(x+75)=11250

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Solution for (75+x)(x+75)=11250 equation:


Simplifying
(75 + x)(x + 75) = 11250

Reorder the terms:
(75 + x)(75 + x) = 11250

Multiply (75 + x) * (75 + x)
(75(75 + x) + x(75 + x)) = 11250
((75 * 75 + x * 75) + x(75 + x)) = 11250
((5625 + 75x) + x(75 + x)) = 11250
(5625 + 75x + (75 * x + x * x)) = 11250
(5625 + 75x + (75x + x2)) = 11250

Combine like terms: 75x + 75x = 150x
(5625 + 150x + x2) = 11250

Solving
5625 + 150x + x2 = 11250

Solving for variable 'x'.

Reorder the terms:
5625 + -11250 + 150x + x2 = 11250 + -11250

Combine like terms: 5625 + -11250 = -5625
-5625 + 150x + x2 = 11250 + -11250

Combine like terms: 11250 + -11250 = 0
-5625 + 150x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '5625' to each side of the equation.
-5625 + 150x + 5625 + x2 = 0 + 5625

Reorder the terms:
-5625 + 5625 + 150x + x2 = 0 + 5625

Combine like terms: -5625 + 5625 = 0
0 + 150x + x2 = 0 + 5625
150x + x2 = 0 + 5625

Combine like terms: 0 + 5625 = 5625
150x + x2 = 5625

The x term is 150x.  Take half its coefficient (75).
Square it (5625) and add it to both sides.

Add '5625' to each side of the equation.
150x + 5625 + x2 = 5625 + 5625

Reorder the terms:
5625 + 150x + x2 = 5625 + 5625

Combine like terms: 5625 + 5625 = 11250
5625 + 150x + x2 = 11250

Factor a perfect square on the left side:
(x + 75)(x + 75) = 11250

Calculate the square root of the right side: 106.066017178

Break this problem into two subproblems by setting 
(x + 75) equal to 106.066017178 and -106.066017178.

Subproblem 1

x + 75 = 106.066017178 Simplifying x + 75 = 106.066017178 Reorder the terms: 75 + x = 106.066017178 Solving 75 + x = 106.066017178 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-75' to each side of the equation. 75 + -75 + x = 106.066017178 + -75 Combine like terms: 75 + -75 = 0 0 + x = 106.066017178 + -75 x = 106.066017178 + -75 Combine like terms: 106.066017178 + -75 = 31.066017178 x = 31.066017178 Simplifying x = 31.066017178

Subproblem 2

x + 75 = -106.066017178 Simplifying x + 75 = -106.066017178 Reorder the terms: 75 + x = -106.066017178 Solving 75 + x = -106.066017178 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-75' to each side of the equation. 75 + -75 + x = -106.066017178 + -75 Combine like terms: 75 + -75 = 0 0 + x = -106.066017178 + -75 x = -106.066017178 + -75 Combine like terms: -106.066017178 + -75 = -181.066017178 x = -181.066017178 Simplifying x = -181.066017178

Solution

The solution to the problem is based on the solutions from the subproblems. x = {31.066017178, -181.066017178}

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