x^2+11x+17=

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Solution for x^2+11x+17= equation:


Simplifying
x2 + 11x + 17 = 0

Reorder the terms:
17 + 11x + x2 = 0

Solving
17 + 11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + 11x + -17 + x2 = 0 + -17

Reorder the terms:
17 + -17 + 11x + x2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 11x + x2 = 0 + -17
11x + x2 = 0 + -17

Combine like terms: 0 + -17 = -17
11x + x2 = -17

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 = -17 + 30.25

Reorder the terms:
30.25 + 11x + x2 = -17 + 30.25

Combine like terms: -17 + 30.25 = 13.25
30.25 + 11x + x2 = 13.25

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = 13.25

Calculate the square root of the right side: 3.640054945

Break this problem into two subproblems by setting 
(x + 5.5) equal to 3.640054945 and -3.640054945.

Subproblem 1

x + 5.5 = 3.640054945 Simplifying x + 5.5 = 3.640054945 Reorder the terms: 5.5 + x = 3.640054945 Solving 5.5 + x = 3.640054945 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 = 3.640054945 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 3.640054945 + -5.5 x = 3.640054945 + -5.5 Combine like terms: 3.640054945 + -5.5 = -1.859945055 x = -1.859945055 Simplifying x = -1.859945055

Subproblem 2

x + 5.5 = -3.640054945 Simplifying x + 5.5 = -3.640054945 Reorder the terms: 5.5 + x = -3.640054945 Solving 5.5 + x = -3.640054945 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 = -3.640054945 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -3.640054945 + -5.5 x = -3.640054945 + -5.5 Combine like terms: -3.640054945 + -5.5 = -9.140054945 x = -9.140054945 Simplifying x = -9.140054945

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.859945055, -9.140054945}

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