x^2+17x+17=0

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Solution for x^2+17x+17=0 equation:


Simplifying
x2 + 17x + 17 = 0

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

Solving
17 + 17x + 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 + 17x + -17 + x2 = 0 + -17

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

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

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

The x term is 17x.  Take half its coefficient (8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
17x + 72.25 + x2 = -17 + 72.25

Reorder the terms:
72.25 + 17x + x2 = -17 + 72.25

Combine like terms: -17 + 72.25 = 55.25
72.25 + 17x + x2 = 55.25

Factor a perfect square on the left side:
(x + 8.5)(x + 8.5) = 55.25

Calculate the square root of the right side: 7.433034374

Break this problem into two subproblems by setting 
(x + 8.5) equal to 7.433034374 and -7.433034374.

Subproblem 1

x + 8.5 = 7.433034374 Simplifying x + 8.5 = 7.433034374 Reorder the terms: 8.5 + x = 7.433034374 Solving 8.5 + x = 7.433034374 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = 7.433034374 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = 7.433034374 + -8.5 x = 7.433034374 + -8.5 Combine like terms: 7.433034374 + -8.5 = -1.066965626 x = -1.066965626 Simplifying x = -1.066965626

Subproblem 2

x + 8.5 = -7.433034374 Simplifying x + 8.5 = -7.433034374 Reorder the terms: 8.5 + x = -7.433034374 Solving 8.5 + x = -7.433034374 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = -7.433034374 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = -7.433034374 + -8.5 x = -7.433034374 + -8.5 Combine like terms: -7.433034374 + -8.5 = -15.933034374 x = -15.933034374 Simplifying x = -15.933034374

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.066965626, -15.933034374}

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