13x^2-2900x=210000

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Solution for 13x^2-2900x=210000 equation:


Simplifying
13x2 + -2900x = 210000

Reorder the terms:
-2900x + 13x2 = 210000

Solving
-2900x + 13x2 = 210000

Solving for variable 'x'.

Reorder the terms:
-210000 + -2900x + 13x2 = 210000 + -210000

Combine like terms: 210000 + -210000 = 0
-210000 + -2900x + 13x2 = 0

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

Divide each side by '13'.
-16153.84615 + -223.0769231x + x2 = 0

Move the constant term to the right:

Add '16153.84615' to each side of the equation.
-16153.84615 + -223.0769231x + 16153.84615 + x2 = 0 + 16153.84615

Reorder the terms:
-16153.84615 + 16153.84615 + -223.0769231x + x2 = 0 + 16153.84615

Combine like terms: -16153.84615 + 16153.84615 = 0.00000
0.00000 + -223.0769231x + x2 = 0 + 16153.84615
-223.0769231x + x2 = 0 + 16153.84615

Combine like terms: 0 + 16153.84615 = 16153.84615
-223.0769231x + x2 = 16153.84615

The x term is -223.0769231x.  Take half its coefficient (-111.5384616).
Square it (12440.82842) and add it to both sides.

Add '12440.82842' to each side of the equation.
-223.0769231x + 12440.82842 + x2 = 16153.84615 + 12440.82842

Reorder the terms:
12440.82842 + -223.0769231x + x2 = 16153.84615 + 12440.82842

Combine like terms: 16153.84615 + 12440.82842 = 28594.67457
12440.82842 + -223.0769231x + x2 = 28594.67457

Factor a perfect square on the left side:
(x + -111.5384616)(x + -111.5384616) = 28594.67457

Calculate the square root of the right side: 169.099599556

Break this problem into two subproblems by setting 
(x + -111.5384616) equal to 169.099599556 and -169.099599556.

Subproblem 1

x + -111.5384616 = 169.099599556 Simplifying x + -111.5384616 = 169.099599556 Reorder the terms: -111.5384616 + x = 169.099599556 Solving -111.5384616 + x = 169.099599556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '111.5384616' to each side of the equation. -111.5384616 + 111.5384616 + x = 169.099599556 + 111.5384616 Combine like terms: -111.5384616 + 111.5384616 = 0.0000000 0.0000000 + x = 169.099599556 + 111.5384616 x = 169.099599556 + 111.5384616 Combine like terms: 169.099599556 + 111.5384616 = 280.638061156 x = 280.638061156 Simplifying x = 280.638061156

Subproblem 2

x + -111.5384616 = -169.099599556 Simplifying x + -111.5384616 = -169.099599556 Reorder the terms: -111.5384616 + x = -169.099599556 Solving -111.5384616 + x = -169.099599556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '111.5384616' to each side of the equation. -111.5384616 + 111.5384616 + x = -169.099599556 + 111.5384616 Combine like terms: -111.5384616 + 111.5384616 = 0.0000000 0.0000000 + x = -169.099599556 + 111.5384616 x = -169.099599556 + 111.5384616 Combine like terms: -169.099599556 + 111.5384616 = -57.561137956 x = -57.561137956 Simplifying x = -57.561137956

Solution

The solution to the problem is based on the solutions from the subproblems. x = {280.638061156, -57.561137956}

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