174=x^2+11x

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Solution for 174=x^2+11x equation:


Simplifying
174 = x2 + 11x

Reorder the terms:
174 = 11x + x2

Solving
174 = 11x + x2

Solving for variable 'x'.

Reorder the terms:
174 + -11x + -1x2 = 11x + -11x + x2 + -1x2

Combine like terms: 11x + -11x = 0
174 + -11x + -1x2 = 0 + x2 + -1x2
174 + -11x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
174 + -11x + -1x2 = 0

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

Divide each side by '-1'.
-174 + 11x + x2 = 0

Move the constant term to the right:

Add '174' to each side of the equation.
-174 + 11x + 174 + x2 = 0 + 174

Reorder the terms:
-174 + 174 + 11x + x2 = 0 + 174

Combine like terms: -174 + 174 = 0
0 + 11x + x2 = 0 + 174
11x + x2 = 0 + 174

Combine like terms: 0 + 174 = 174
11x + x2 = 174

The x term is 11x.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11x + 30.25 + x2 = 174 + 30.25

Reorder the terms:
30.25 + 11x + x2 = 174 + 30.25

Combine like terms: 174 + 30.25 = 204.25
30.25 + 11x + x2 = 204.25

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = 204.25

Calculate the square root of the right side: 14.291605928

Break this problem into two subproblems by setting 
(x + 5.5) equal to 14.291605928 and -14.291605928.

Subproblem 1

x + 5.5 = 14.291605928 Simplifying x + 5.5 = 14.291605928 Reorder the terms: 5.5 + x = 14.291605928 Solving 5.5 + x = 14.291605928 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = 14.291605928 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 14.291605928 + -5.5 x = 14.291605928 + -5.5 Combine like terms: 14.291605928 + -5.5 = 8.791605928 x = 8.791605928 Simplifying x = 8.791605928

Subproblem 2

x + 5.5 = -14.291605928 Simplifying x + 5.5 = -14.291605928 Reorder the terms: 5.5 + x = -14.291605928 Solving 5.5 + x = -14.291605928 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = -14.291605928 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -14.291605928 + -5.5 x = -14.291605928 + -5.5 Combine like terms: -14.291605928 + -5.5 = -19.791605928 x = -19.791605928 Simplifying x = -19.791605928

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.791605928, -19.791605928}

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