2x^2+7x+17=0

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Solution for 2x^2+7x+17=0 equation:


Simplifying
2x2 + 7x + 17 = 0

Reorder the terms:
17 + 7x + 2x2 = 0

Solving
17 + 7x + 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'.
8.5 + 3.5x + x2 = 0

Move the constant term to the right:

Add '-8.5' to each side of the equation.
8.5 + 3.5x + -8.5 + x2 = 0 + -8.5

Reorder the terms:
8.5 + -8.5 + 3.5x + x2 = 0 + -8.5

Combine like terms: 8.5 + -8.5 = 0.0
0.0 + 3.5x + x2 = 0 + -8.5
3.5x + x2 = 0 + -8.5

Combine like terms: 0 + -8.5 = -8.5
3.5x + x2 = -8.5

The x term is 3.5x.  Take half its coefficient (1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
3.5x + 3.0625 + x2 = -8.5 + 3.0625

Reorder the terms:
3.0625 + 3.5x + x2 = -8.5 + 3.0625

Combine like terms: -8.5 + 3.0625 = -5.4375
3.0625 + 3.5x + x2 = -5.4375

Factor a perfect square on the left side:
(x + 1.75)(x + 1.75) = -5.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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