8x^2-36x+405=

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Solution for 8x^2-36x+405= equation:


Simplifying
8x2 + -36x + 405 = 0

Reorder the terms:
405 + -36x + 8x2 = 0

Solving
405 + -36x + 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'.
50.625 + -4.5x + x2 = 0

Move the constant term to the right:

Add '-50.625' to each side of the equation.
50.625 + -4.5x + -50.625 + x2 = 0 + -50.625

Reorder the terms:
50.625 + -50.625 + -4.5x + x2 = 0 + -50.625

Combine like terms: 50.625 + -50.625 = 0.000
0.000 + -4.5x + x2 = 0 + -50.625
-4.5x + x2 = 0 + -50.625

Combine like terms: 0 + -50.625 = -50.625
-4.5x + x2 = -50.625

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 = -50.625 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = -50.625 + 5.0625

Combine like terms: -50.625 + 5.0625 = -45.5625
5.0625 + -4.5x + x2 = -45.5625

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = -45.5625

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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