x+2=2x(x-13)

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Solution for x+2=2x(x-13) equation:


Simplifying
x + 2 = 2x(x + -13)

Reorder the terms:
2 + x = 2x(x + -13)

Reorder the terms:
2 + x = 2x(-13 + x)
2 + x = (-13 * 2x + x * 2x)
2 + x = (-26x + 2x2)

Solving
2 + x = -26x + 2x2

Solving for variable 'x'.

Combine like terms: x + 26x = 27x
2 + 27x + -2x2 = -26x + 2x2 + 26x + -2x2

Reorder the terms:
2 + 27x + -2x2 = -26x + 26x + 2x2 + -2x2

Combine like terms: -26x + 26x = 0
2 + 27x + -2x2 = 0 + 2x2 + -2x2
2 + 27x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
2 + 27x + -2x2 = 0

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

Divide each side by '-2'.
-1 + -13.5x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -13.5x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -13.5x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -13.5x + x2 = 0 + 1
-13.5x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-13.5x + x2 = 1

The x term is -13.5x.  Take half its coefficient (-6.75).
Square it (45.5625) and add it to both sides.

Add '45.5625' to each side of the equation.
-13.5x + 45.5625 + x2 = 1 + 45.5625

Reorder the terms:
45.5625 + -13.5x + x2 = 1 + 45.5625

Combine like terms: 1 + 45.5625 = 46.5625
45.5625 + -13.5x + x2 = 46.5625

Factor a perfect square on the left side:
(x + -6.75)(x + -6.75) = 46.5625

Calculate the square root of the right side: 6.823672032

Break this problem into two subproblems by setting 
(x + -6.75) equal to 6.823672032 and -6.823672032.

Subproblem 1

x + -6.75 = 6.823672032 Simplifying x + -6.75 = 6.823672032 Reorder the terms: -6.75 + x = 6.823672032 Solving -6.75 + x = 6.823672032 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.75' to each side of the equation. -6.75 + 6.75 + x = 6.823672032 + 6.75 Combine like terms: -6.75 + 6.75 = 0.00 0.00 + x = 6.823672032 + 6.75 x = 6.823672032 + 6.75 Combine like terms: 6.823672032 + 6.75 = 13.573672032 x = 13.573672032 Simplifying x = 13.573672032

Subproblem 2

x + -6.75 = -6.823672032 Simplifying x + -6.75 = -6.823672032 Reorder the terms: -6.75 + x = -6.823672032 Solving -6.75 + x = -6.823672032 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.75' to each side of the equation. -6.75 + 6.75 + x = -6.823672032 + 6.75 Combine like terms: -6.75 + 6.75 = 0.00 0.00 + x = -6.823672032 + 6.75 x = -6.823672032 + 6.75 Combine like terms: -6.823672032 + 6.75 = -0.073672032 x = -0.073672032 Simplifying x = -0.073672032

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.573672032, -0.073672032}

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