2x*2x=412-x

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Solution for 2x*2x=412-x equation:


Simplifying
2x * 2x = 412 + -1x

Reorder the terms for easier multiplication:
2 * 2x * x = 412 + -1x

Multiply 2 * 2
4x * x = 412 + -1x

Multiply x * x
4x2 = 412 + -1x

Solving
4x2 = 412 + -1x

Solving for variable 'x'.

Reorder the terms:
-412 + x + 4x2 = 412 + -1x + -412 + x

Reorder the terms:
-412 + x + 4x2 = 412 + -412 + -1x + x

Combine like terms: 412 + -412 = 0
-412 + x + 4x2 = 0 + -1x + x
-412 + x + 4x2 = -1x + x

Combine like terms: -1x + x = 0
-412 + x + 4x2 = 0

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

Divide each side by '4'.
-103 + 0.25x + x2 = 0

Move the constant term to the right:

Add '103' to each side of the equation.
-103 + 0.25x + 103 + x2 = 0 + 103

Reorder the terms:
-103 + 103 + 0.25x + x2 = 0 + 103

Combine like terms: -103 + 103 = 0
0 + 0.25x + x2 = 0 + 103
0.25x + x2 = 0 + 103

Combine like terms: 0 + 103 = 103
0.25x + x2 = 103

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.25x + 0.25 + x2 = 103 + 0.25

Reorder the terms:
0.25 + 0.25x + x2 = 103 + 0.25

Combine like terms: 103 + 0.25 = 103.25
0.25 + 0.25x + x2 = 103.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 103.25

Calculate the square root of the right side: 10.161200716

Break this problem into two subproblems by setting 
(x + 0.5) equal to 10.161200716 and -10.161200716.

Subproblem 1

x + 0.5 = 10.161200716 Simplifying x + 0.5 = 10.161200716 Reorder the terms: 0.5 + x = 10.161200716 Solving 0.5 + x = 10.161200716 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 10.161200716 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 10.161200716 + -0.5 x = 10.161200716 + -0.5 Combine like terms: 10.161200716 + -0.5 = 9.661200716 x = 9.661200716 Simplifying x = 9.661200716

Subproblem 2

x + 0.5 = -10.161200716 Simplifying x + 0.5 = -10.161200716 Reorder the terms: 0.5 + x = -10.161200716 Solving 0.5 + x = -10.161200716 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -10.161200716 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -10.161200716 + -0.5 x = -10.161200716 + -0.5 Combine like terms: -10.161200716 + -0.5 = -10.661200716 x = -10.661200716 Simplifying x = -10.661200716

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.661200716, -10.661200716}

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