8x+2x(2x+11)=x+2000

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Solution for 8x+2x(2x+11)=x+2000 equation:


Simplifying
8x + 2x(2x + 11) = x + 2000

Reorder the terms:
8x + 2x(11 + 2x) = x + 2000
8x + (11 * 2x + 2x * 2x) = x + 2000
8x + (22x + 4x2) = x + 2000

Combine like terms: 8x + 22x = 30x
30x + 4x2 = x + 2000

Reorder the terms:
30x + 4x2 = 2000 + x

Solving
30x + 4x2 = 2000 + x

Solving for variable 'x'.

Reorder the terms:
-2000 + 30x + -1x + 4x2 = 2000 + x + -2000 + -1x

Combine like terms: 30x + -1x = 29x
-2000 + 29x + 4x2 = 2000 + x + -2000 + -1x

Reorder the terms:
-2000 + 29x + 4x2 = 2000 + -2000 + x + -1x

Combine like terms: 2000 + -2000 = 0
-2000 + 29x + 4x2 = 0 + x + -1x
-2000 + 29x + 4x2 = x + -1x

Combine like terms: x + -1x = 0
-2000 + 29x + 4x2 = 0

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

Divide each side by '4'.
-500 + 7.25x + x2 = 0

Move the constant term to the right:

Add '500' to each side of the equation.
-500 + 7.25x + 500 + x2 = 0 + 500

Reorder the terms:
-500 + 500 + 7.25x + x2 = 0 + 500

Combine like terms: -500 + 500 = 0
0 + 7.25x + x2 = 0 + 500
7.25x + x2 = 0 + 500

Combine like terms: 0 + 500 = 500
7.25x + x2 = 500

The x term is 7.25x.  Take half its coefficient (3.625).
Square it (13.140625) and add it to both sides.

Add '13.140625' to each side of the equation.
7.25x + 13.140625 + x2 = 500 + 13.140625

Reorder the terms:
13.140625 + 7.25x + x2 = 500 + 13.140625

Combine like terms: 500 + 13.140625 = 513.140625
13.140625 + 7.25x + x2 = 513.140625

Factor a perfect square on the left side:
(x + 3.625)(x + 3.625) = 513.140625

Calculate the square root of the right side: 22.652607466

Break this problem into two subproblems by setting 
(x + 3.625) equal to 22.652607466 and -22.652607466.

Subproblem 1

x + 3.625 = 22.652607466 Simplifying x + 3.625 = 22.652607466 Reorder the terms: 3.625 + x = 22.652607466 Solving 3.625 + x = 22.652607466 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.625' to each side of the equation. 3.625 + -3.625 + x = 22.652607466 + -3.625 Combine like terms: 3.625 + -3.625 = 0.000 0.000 + x = 22.652607466 + -3.625 x = 22.652607466 + -3.625 Combine like terms: 22.652607466 + -3.625 = 19.027607466 x = 19.027607466 Simplifying x = 19.027607466

Subproblem 2

x + 3.625 = -22.652607466 Simplifying x + 3.625 = -22.652607466 Reorder the terms: 3.625 + x = -22.652607466 Solving 3.625 + x = -22.652607466 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.625' to each side of the equation. 3.625 + -3.625 + x = -22.652607466 + -3.625 Combine like terms: 3.625 + -3.625 = 0.000 0.000 + x = -22.652607466 + -3.625 x = -22.652607466 + -3.625 Combine like terms: -22.652607466 + -3.625 = -26.277607466 x = -26.277607466 Simplifying x = -26.277607466

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.027607466, -26.277607466}

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