x^2+1200x=360000

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Solution for x^2+1200x=360000 equation:


Simplifying
x2 + 1200x = 360000

Reorder the terms:
1200x + x2 = 360000

Solving
1200x + x2 = 360000

Solving for variable 'x'.

Reorder the terms:
-360000 + 1200x + x2 = 360000 + -360000

Combine like terms: 360000 + -360000 = 0
-360000 + 1200x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '360000' to each side of the equation.
-360000 + 1200x + 360000 + x2 = 0 + 360000

Reorder the terms:
-360000 + 360000 + 1200x + x2 = 0 + 360000

Combine like terms: -360000 + 360000 = 0
0 + 1200x + x2 = 0 + 360000
1200x + x2 = 0 + 360000

Combine like terms: 0 + 360000 = 360000
1200x + x2 = 360000

The x term is 1200x.  Take half its coefficient (600).
Square it (360000) and add it to both sides.

Add '360000' to each side of the equation.
1200x + 360000 + x2 = 360000 + 360000

Reorder the terms:
360000 + 1200x + x2 = 360000 + 360000

Combine like terms: 360000 + 360000 = 720000
360000 + 1200x + x2 = 720000

Factor a perfect square on the left side:
(x + 600)(x + 600) = 720000

Calculate the square root of the right side: 848.528137424

Break this problem into two subproblems by setting 
(x + 600) equal to 848.528137424 and -848.528137424.

Subproblem 1

x + 600 = 848.528137424 Simplifying x + 600 = 848.528137424 Reorder the terms: 600 + x = 848.528137424 Solving 600 + x = 848.528137424 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-600' to each side of the equation. 600 + -600 + x = 848.528137424 + -600 Combine like terms: 600 + -600 = 0 0 + x = 848.528137424 + -600 x = 848.528137424 + -600 Combine like terms: 848.528137424 + -600 = 248.528137424 x = 248.528137424 Simplifying x = 248.528137424

Subproblem 2

x + 600 = -848.528137424 Simplifying x + 600 = -848.528137424 Reorder the terms: 600 + x = -848.528137424 Solving 600 + x = -848.528137424 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-600' to each side of the equation. 600 + -600 + x = -848.528137424 + -600 Combine like terms: 600 + -600 = 0 0 + x = -848.528137424 + -600 x = -848.528137424 + -600 Combine like terms: -848.528137424 + -600 = -1448.528137424 x = -1448.528137424 Simplifying x = -1448.528137424

Solution

The solution to the problem is based on the solutions from the subproblems. x = {248.528137424, -1448.528137424}

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