4x(x-600)=3765

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Solution for 4x(x-600)=3765 equation:


Simplifying
4x(x + -600) = 3765

Reorder the terms:
4x(-600 + x) = 3765
(-600 * 4x + x * 4x) = 3765
(-2400x + 4x2) = 3765

Solving
-2400x + 4x2 = 3765

Solving for variable 'x'.

Reorder the terms:
-3765 + -2400x + 4x2 = 3765 + -3765

Combine like terms: 3765 + -3765 = 0
-3765 + -2400x + 4x2 = 0

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

Divide each side by '4'.
-941.25 + -600x + x2 = 0

Move the constant term to the right:

Add '941.25' to each side of the equation.
-941.25 + -600x + 941.25 + x2 = 0 + 941.25

Reorder the terms:
-941.25 + 941.25 + -600x + x2 = 0 + 941.25

Combine like terms: -941.25 + 941.25 = 0.00
0.00 + -600x + x2 = 0 + 941.25
-600x + x2 = 0 + 941.25

Combine like terms: 0 + 941.25 = 941.25
-600x + x2 = 941.25

The x term is -600x.  Take half its coefficient (-300).
Square it (90000) and add it to both sides.

Add '90000' to each side of the equation.
-600x + 90000 + x2 = 941.25 + 90000

Reorder the terms:
90000 + -600x + x2 = 941.25 + 90000

Combine like terms: 941.25 + 90000 = 90941.25
90000 + -600x + x2 = 90941.25

Factor a perfect square on the left side:
(x + -300)(x + -300) = 90941.25

Calculate the square root of the right side: 301.564669681

Break this problem into two subproblems by setting 
(x + -300) equal to 301.564669681 and -301.564669681.

Subproblem 1

x + -300 = 301.564669681 Simplifying x + -300 = 301.564669681 Reorder the terms: -300 + x = 301.564669681 Solving -300 + x = 301.564669681 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '300' to each side of the equation. -300 + 300 + x = 301.564669681 + 300 Combine like terms: -300 + 300 = 0 0 + x = 301.564669681 + 300 x = 301.564669681 + 300 Combine like terms: 301.564669681 + 300 = 601.564669681 x = 601.564669681 Simplifying x = 601.564669681

Subproblem 2

x + -300 = -301.564669681 Simplifying x + -300 = -301.564669681 Reorder the terms: -300 + x = -301.564669681 Solving -300 + x = -301.564669681 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '300' to each side of the equation. -300 + 300 + x = -301.564669681 + 300 Combine like terms: -300 + 300 = 0 0 + x = -301.564669681 + 300 x = -301.564669681 + 300 Combine like terms: -301.564669681 + 300 = -1.564669681 x = -1.564669681 Simplifying x = -1.564669681

Solution

The solution to the problem is based on the solutions from the subproblems. x = {601.564669681, -1.564669681}

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