2x^2-17x+128=0

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Solution for 2x^2-17x+128=0 equation:


Simplifying
2x2 + -17x + 128 = 0

Reorder the terms:
128 + -17x + 2x2 = 0

Solving
128 + -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'.
64 + -8.5x + x2 = 0

Move the constant term to the right:

Add '-64' to each side of the equation.
64 + -8.5x + -64 + x2 = 0 + -64

Reorder the terms:
64 + -64 + -8.5x + x2 = 0 + -64

Combine like terms: 64 + -64 = 0
0 + -8.5x + x2 = 0 + -64
-8.5x + x2 = 0 + -64

Combine like terms: 0 + -64 = -64
-8.5x + x2 = -64

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 = -64 + 18.0625

Reorder the terms:
18.0625 + -8.5x + x2 = -64 + 18.0625

Combine like terms: -64 + 18.0625 = -45.9375
18.0625 + -8.5x + x2 = -45.9375

Factor a perfect square on the left side:
(x + -4.25)(x + -4.25) = -45.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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