2x^2+17x+34=0

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Solution for 2x^2+17x+34=0 equation:


Simplifying
2x2 + 17x + 34 = 0

Reorder the terms:
34 + 17x + 2x2 = 0

Solving
34 + 17x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
17 + 8.5x + x2 = 0

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + 8.5x + -17 + x2 = 0 + -17

Reorder the terms:
17 + -17 + 8.5x + x2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 8.5x + x2 = 0 + -17
8.5x + x2 = 0 + -17

Combine like terms: 0 + -17 = -17
8.5x + x2 = -17

The x term is 8.5x.  Take half its coefficient (4.25).
Square it (18.0625) and add it to both sides.

Add '18.0625' to each side of the equation.
8.5x + 18.0625 + x2 = -17 + 18.0625

Reorder the terms:
18.0625 + 8.5x + x2 = -17 + 18.0625

Combine like terms: -17 + 18.0625 = 1.0625
18.0625 + 8.5x + x2 = 1.0625

Factor a perfect square on the left side:
(x + 4.25)(x + 4.25) = 1.0625

Calculate the square root of the right side: 1.030776406

Break this problem into two subproblems by setting 
(x + 4.25) equal to 1.030776406 and -1.030776406.

Subproblem 1

x + 4.25 = 1.030776406 Simplifying x + 4.25 = 1.030776406 Reorder the terms: 4.25 + x = 1.030776406 Solving 4.25 + x = 1.030776406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.25' to each side of the equation. 4.25 + -4.25 + x = 1.030776406 + -4.25 Combine like terms: 4.25 + -4.25 = 0.00 0.00 + x = 1.030776406 + -4.25 x = 1.030776406 + -4.25 Combine like terms: 1.030776406 + -4.25 = -3.219223594 x = -3.219223594 Simplifying x = -3.219223594

Subproblem 2

x + 4.25 = -1.030776406 Simplifying x + 4.25 = -1.030776406 Reorder the terms: 4.25 + x = -1.030776406 Solving 4.25 + x = -1.030776406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.25' to each side of the equation. 4.25 + -4.25 + x = -1.030776406 + -4.25 Combine like terms: 4.25 + -4.25 = 0.00 0.00 + x = -1.030776406 + -4.25 x = -1.030776406 + -4.25 Combine like terms: -1.030776406 + -4.25 = -5.280776406 x = -5.280776406 Simplifying x = -5.280776406

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-3.219223594, -5.280776406}

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