x^2-647x+196=0

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Solution for x^2-647x+196=0 equation:


Simplifying
x2 + -647x + 196 = 0

Reorder the terms:
196 + -647x + x2 = 0

Solving
196 + -647x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-196' to each side of the equation.
196 + -647x + -196 + x2 = 0 + -196

Reorder the terms:
196 + -196 + -647x + x2 = 0 + -196

Combine like terms: 196 + -196 = 0
0 + -647x + x2 = 0 + -196
-647x + x2 = 0 + -196

Combine like terms: 0 + -196 = -196
-647x + x2 = -196

The x term is -647x.  Take half its coefficient (-323.5).
Square it (104652.25) and add it to both sides.

Add '104652.25' to each side of the equation.
-647x + 104652.25 + x2 = -196 + 104652.25

Reorder the terms:
104652.25 + -647x + x2 = -196 + 104652.25

Combine like terms: -196 + 104652.25 = 104456.25
104652.25 + -647x + x2 = 104456.25

Factor a perfect square on the left side:
(x + -323.5)(x + -323.5) = 104456.25

Calculate the square root of the right side: 323.196921396

Break this problem into two subproblems by setting 
(x + -323.5) equal to 323.196921396 and -323.196921396.

Subproblem 1

x + -323.5 = 323.196921396 Simplifying x + -323.5 = 323.196921396 Reorder the terms: -323.5 + x = 323.196921396 Solving -323.5 + x = 323.196921396 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '323.5' to each side of the equation. -323.5 + 323.5 + x = 323.196921396 + 323.5 Combine like terms: -323.5 + 323.5 = 0.0 0.0 + x = 323.196921396 + 323.5 x = 323.196921396 + 323.5 Combine like terms: 323.196921396 + 323.5 = 646.696921396 x = 646.696921396 Simplifying x = 646.696921396

Subproblem 2

x + -323.5 = -323.196921396 Simplifying x + -323.5 = -323.196921396 Reorder the terms: -323.5 + x = -323.196921396 Solving -323.5 + x = -323.196921396 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '323.5' to each side of the equation. -323.5 + 323.5 + x = -323.196921396 + 323.5 Combine like terms: -323.5 + 323.5 = 0.0 0.0 + x = -323.196921396 + 323.5 x = -323.196921396 + 323.5 Combine like terms: -323.196921396 + 323.5 = 0.303078604 x = 0.303078604 Simplifying x = 0.303078604

Solution

The solution to the problem is based on the solutions from the subproblems. x = {646.696921396, 0.303078604}

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