16x^2-72x+255=0

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Solution for 16x^2-72x+255=0 equation:


Simplifying
16x2 + -72x + 255 = 0

Reorder the terms:
255 + -72x + 16x2 = 0

Solving
255 + -72x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
15.9375 + -4.5x + x2 = 0

Move the constant term to the right:

Add '-15.9375' to each side of the equation.
15.9375 + -4.5x + -15.9375 + x2 = 0 + -15.9375

Reorder the terms:
15.9375 + -15.9375 + -4.5x + x2 = 0 + -15.9375

Combine like terms: 15.9375 + -15.9375 = 0.0000
0.0000 + -4.5x + x2 = 0 + -15.9375
-4.5x + x2 = 0 + -15.9375

Combine like terms: 0 + -15.9375 = -15.9375
-4.5x + x2 = -15.9375

The x term is -4.5x.  Take half its coefficient (-2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
-4.5x + 5.0625 + x2 = -15.9375 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = -15.9375 + 5.0625

Combine like terms: -15.9375 + 5.0625 = -10.875
5.0625 + -4.5x + x2 = -10.875

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = -10.875

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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