.67x+.5=x^2

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Solution for .67x+.5=x^2 equation:


Simplifying
0.67x + 0.5 = x2

Reorder the terms:
0.5 + 0.67x = x2

Solving
0.5 + 0.67x = x2

Solving for variable 'x'.

Combine like terms: x2 + -1x2 = 0
0.5 + 0.67x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-0.5 + -0.67x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -0.67x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -0.67x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -0.67x + x2 = 0 + 0.5
-0.67x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-0.67x + x2 = 0.5

The x term is -0.67x.  Take half its coefficient (-0.335).
Square it (0.112225) and add it to both sides.

Add '0.112225' to each side of the equation.
-0.67x + 0.112225 + x2 = 0.5 + 0.112225

Reorder the terms:
0.112225 + -0.67x + x2 = 0.5 + 0.112225

Combine like terms: 0.5 + 0.112225 = 0.612225
0.112225 + -0.67x + x2 = 0.612225

Factor a perfect square on the left side:
(x + -0.335)(x + -0.335) = 0.612225

Calculate the square root of the right side: 0.782448081

Break this problem into two subproblems by setting 
(x + -0.335) equal to 0.782448081 and -0.782448081.

Subproblem 1

x + -0.335 = 0.782448081 Simplifying x + -0.335 = 0.782448081 Reorder the terms: -0.335 + x = 0.782448081 Solving -0.335 + x = 0.782448081 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.335' to each side of the equation. -0.335 + 0.335 + x = 0.782448081 + 0.335 Combine like terms: -0.335 + 0.335 = 0.000 0.000 + x = 0.782448081 + 0.335 x = 0.782448081 + 0.335 Combine like terms: 0.782448081 + 0.335 = 1.117448081 x = 1.117448081 Simplifying x = 1.117448081

Subproblem 2

x + -0.335 = -0.782448081 Simplifying x + -0.335 = -0.782448081 Reorder the terms: -0.335 + x = -0.782448081 Solving -0.335 + x = -0.782448081 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.335' to each side of the equation. -0.335 + 0.335 + x = -0.782448081 + 0.335 Combine like terms: -0.335 + 0.335 = 0.000 0.000 + x = -0.782448081 + 0.335 x = -0.782448081 + 0.335 Combine like terms: -0.782448081 + 0.335 = -0.447448081 x = -0.447448081 Simplifying x = -0.447448081

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.117448081, -0.447448081}

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