676=22x+x^2

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Solution for 676=22x+x^2 equation:


Simplifying
676 = 22x + x2

Solving
676 = 22x + x2

Solving for variable 'x'.

Reorder the terms:
676 + -22x + -1x2 = 22x + -22x + x2 + -1x2

Combine like terms: 22x + -22x = 0
676 + -22x + -1x2 = 0 + x2 + -1x2
676 + -22x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
676 + -22x + -1x2 = 0

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

Divide each side by '-1'.
-676 + 22x + x2 = 0

Move the constant term to the right:

Add '676' to each side of the equation.
-676 + 22x + 676 + x2 = 0 + 676

Reorder the terms:
-676 + 676 + 22x + x2 = 0 + 676

Combine like terms: -676 + 676 = 0
0 + 22x + x2 = 0 + 676
22x + x2 = 0 + 676

Combine like terms: 0 + 676 = 676
22x + x2 = 676

The x term is 22x.  Take half its coefficient (11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
22x + 121 + x2 = 676 + 121

Reorder the terms:
121 + 22x + x2 = 676 + 121

Combine like terms: 676 + 121 = 797
121 + 22x + x2 = 797

Factor a perfect square on the left side:
(x + 11)(x + 11) = 797

Calculate the square root of the right side: 28.231188427

Break this problem into two subproblems by setting 
(x + 11) equal to 28.231188427 and -28.231188427.

Subproblem 1

x + 11 = 28.231188427 Simplifying x + 11 = 28.231188427 Reorder the terms: 11 + x = 28.231188427 Solving 11 + x = 28.231188427 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = 28.231188427 + -11 Combine like terms: 11 + -11 = 0 0 + x = 28.231188427 + -11 x = 28.231188427 + -11 Combine like terms: 28.231188427 + -11 = 17.231188427 x = 17.231188427 Simplifying x = 17.231188427

Subproblem 2

x + 11 = -28.231188427 Simplifying x + 11 = -28.231188427 Reorder the terms: 11 + x = -28.231188427 Solving 11 + x = -28.231188427 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = -28.231188427 + -11 Combine like terms: 11 + -11 = 0 0 + x = -28.231188427 + -11 x = -28.231188427 + -11 Combine like terms: -28.231188427 + -11 = -39.231188427 x = -39.231188427 Simplifying x = -39.231188427

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.231188427, -39.231188427}

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