213x+2x^2=2000

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Solution for 213x+2x^2=2000 equation:


Simplifying
213x + 2x2 = 2000

Solving
213x + 2x2 = 2000

Solving for variable 'x'.

Reorder the terms:
-2000 + 213x + 2x2 = 2000 + -2000

Combine like terms: 2000 + -2000 = 0
-2000 + 213x + 2x2 = 0

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

Divide each side by '2'.
-1000 + 106.5x + x2 = 0

Move the constant term to the right:

Add '1000' to each side of the equation.
-1000 + 106.5x + 1000 + x2 = 0 + 1000

Reorder the terms:
-1000 + 1000 + 106.5x + x2 = 0 + 1000

Combine like terms: -1000 + 1000 = 0
0 + 106.5x + x2 = 0 + 1000
106.5x + x2 = 0 + 1000

Combine like terms: 0 + 1000 = 1000
106.5x + x2 = 1000

The x term is 106.5x.  Take half its coefficient (53.25).
Square it (2835.5625) and add it to both sides.

Add '2835.5625' to each side of the equation.
106.5x + 2835.5625 + x2 = 1000 + 2835.5625

Reorder the terms:
2835.5625 + 106.5x + x2 = 1000 + 2835.5625

Combine like terms: 1000 + 2835.5625 = 3835.5625
2835.5625 + 106.5x + x2 = 3835.5625

Factor a perfect square on the left side:
(x + 53.25)(x + 53.25) = 3835.5625

Calculate the square root of the right side: 61.931918265

Break this problem into two subproblems by setting 
(x + 53.25) equal to 61.931918265 and -61.931918265.

Subproblem 1

x + 53.25 = 61.931918265 Simplifying x + 53.25 = 61.931918265 Reorder the terms: 53.25 + x = 61.931918265 Solving 53.25 + x = 61.931918265 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-53.25' to each side of the equation. 53.25 + -53.25 + x = 61.931918265 + -53.25 Combine like terms: 53.25 + -53.25 = 0.00 0.00 + x = 61.931918265 + -53.25 x = 61.931918265 + -53.25 Combine like terms: 61.931918265 + -53.25 = 8.681918265 x = 8.681918265 Simplifying x = 8.681918265

Subproblem 2

x + 53.25 = -61.931918265 Simplifying x + 53.25 = -61.931918265 Reorder the terms: 53.25 + x = -61.931918265 Solving 53.25 + x = -61.931918265 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-53.25' to each side of the equation. 53.25 + -53.25 + x = -61.931918265 + -53.25 Combine like terms: 53.25 + -53.25 = 0.00 0.00 + x = -61.931918265 + -53.25 x = -61.931918265 + -53.25 Combine like terms: -61.931918265 + -53.25 = -115.181918265 x = -115.181918265 Simplifying x = -115.181918265

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.681918265, -115.181918265}

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