X^2+700X=18000

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Solution for X^2+700X=18000 equation:


Simplifying
X2 + 700X = 18000

Reorder the terms:
700X + X2 = 18000

Solving
700X + X2 = 18000

Solving for variable 'X'.

Reorder the terms:
-18000 + 700X + X2 = 18000 + -18000

Combine like terms: 18000 + -18000 = 0
-18000 + 700X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '18000' to each side of the equation.
-18000 + 700X + 18000 + X2 = 0 + 18000

Reorder the terms:
-18000 + 18000 + 700X + X2 = 0 + 18000

Combine like terms: -18000 + 18000 = 0
0 + 700X + X2 = 0 + 18000
700X + X2 = 0 + 18000

Combine like terms: 0 + 18000 = 18000
700X + X2 = 18000

The X term is 700X.  Take half its coefficient (350).
Square it (122500) and add it to both sides.

Add '122500' to each side of the equation.
700X + 122500 + X2 = 18000 + 122500

Reorder the terms:
122500 + 700X + X2 = 18000 + 122500

Combine like terms: 18000 + 122500 = 140500
122500 + 700X + X2 = 140500

Factor a perfect square on the left side:
(X + 350)(X + 350) = 140500

Calculate the square root of the right side: 374.83329628

Break this problem into two subproblems by setting 
(X + 350) equal to 374.83329628 and -374.83329628.

Subproblem 1

X + 350 = 374.83329628 Simplifying X + 350 = 374.83329628 Reorder the terms: 350 + X = 374.83329628 Solving 350 + X = 374.83329628 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-350' to each side of the equation. 350 + -350 + X = 374.83329628 + -350 Combine like terms: 350 + -350 = 0 0 + X = 374.83329628 + -350 X = 374.83329628 + -350 Combine like terms: 374.83329628 + -350 = 24.83329628 X = 24.83329628 Simplifying X = 24.83329628

Subproblem 2

X + 350 = -374.83329628 Simplifying X + 350 = -374.83329628 Reorder the terms: 350 + X = -374.83329628 Solving 350 + X = -374.83329628 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-350' to each side of the equation. 350 + -350 + X = -374.83329628 + -350 Combine like terms: 350 + -350 = 0 0 + X = -374.83329628 + -350 X = -374.83329628 + -350 Combine like terms: -374.83329628 + -350 = -724.83329628 X = -724.83329628 Simplifying X = -724.83329628

Solution

The solution to the problem is based on the solutions from the subproblems. X = {24.83329628, -724.83329628}

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