8x^2-5x+16=

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Solution for 8x^2-5x+16= equation:


Simplifying
8x2 + -5x + 16 = 0

Reorder the terms:
16 + -5x + 8x2 = 0

Solving
16 + -5x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
2 + -0.625x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -0.625x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -0.625x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -0.625x + x2 = 0 + -2
-0.625x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-0.625x + x2 = -2

The x term is -0.625x.  Take half its coefficient (-0.3125).
Square it (0.09765625) and add it to both sides.

Add '0.09765625' to each side of the equation.
-0.625x + 0.09765625 + x2 = -2 + 0.09765625

Reorder the terms:
0.09765625 + -0.625x + x2 = -2 + 0.09765625

Combine like terms: -2 + 0.09765625 = -1.90234375
0.09765625 + -0.625x + x2 = -1.90234375

Factor a perfect square on the left side:
(x + -0.3125)(x + -0.3125) = -1.90234375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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