2x^2-9x+126=0

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Solution for 2x^2-9x+126=0 equation:


Simplifying
2x2 + -9x + 126 = 0

Reorder the terms:
126 + -9x + 2x2 = 0

Solving
126 + -9x + 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'.
63 + -4.5x + x2 = 0

Move the constant term to the right:

Add '-63' to each side of the equation.
63 + -4.5x + -63 + x2 = 0 + -63

Reorder the terms:
63 + -63 + -4.5x + x2 = 0 + -63

Combine like terms: 63 + -63 = 0
0 + -4.5x + x2 = 0 + -63
-4.5x + x2 = 0 + -63

Combine like terms: 0 + -63 = -63
-4.5x + x2 = -63

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 = -63 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = -63 + 5.0625

Combine like terms: -63 + 5.0625 = -57.9375
5.0625 + -4.5x + x2 = -57.9375

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = -57.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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