199+10x=x^2

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Solution for 199+10x=x^2 equation:


Simplifying
199 + 10x = x2

Solving
199 + 10x = x2

Solving for variable 'x'.

Combine like terms: x2 + -1x2 = 0
199 + 10x + -1x2 = 0

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

Divide each side by '-1'.
-199 + -10x + x2 = 0

Move the constant term to the right:

Add '199' to each side of the equation.
-199 + -10x + 199 + x2 = 0 + 199

Reorder the terms:
-199 + 199 + -10x + x2 = 0 + 199

Combine like terms: -199 + 199 = 0
0 + -10x + x2 = 0 + 199
-10x + x2 = 0 + 199

Combine like terms: 0 + 199 = 199
-10x + x2 = 199

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = 199 + 25

Reorder the terms:
25 + -10x + x2 = 199 + 25

Combine like terms: 199 + 25 = 224
25 + -10x + x2 = 224

Factor a perfect square on the left side:
(x + -5)(x + -5) = 224

Calculate the square root of the right side: 14.966629547

Break this problem into two subproblems by setting 
(x + -5) equal to 14.966629547 and -14.966629547.

Subproblem 1

x + -5 = 14.966629547 Simplifying x + -5 = 14.966629547 Reorder the terms: -5 + x = 14.966629547 Solving -5 + x = 14.966629547 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 14.966629547 + 5 Combine like terms: -5 + 5 = 0 0 + x = 14.966629547 + 5 x = 14.966629547 + 5 Combine like terms: 14.966629547 + 5 = 19.966629547 x = 19.966629547 Simplifying x = 19.966629547

Subproblem 2

x + -5 = -14.966629547 Simplifying x + -5 = -14.966629547 Reorder the terms: -5 + x = -14.966629547 Solving -5 + x = -14.966629547 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -14.966629547 + 5 Combine like terms: -5 + 5 = 0 0 + x = -14.966629547 + 5 x = -14.966629547 + 5 Combine like terms: -14.966629547 + 5 = -9.966629547 x = -9.966629547 Simplifying x = -9.966629547

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.966629547, -9.966629547}

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