2x^2+5x+108=0

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Solution for 2x^2+5x+108=0 equation:


Simplifying
2x2 + 5x + 108 = 0

Reorder the terms:
108 + 5x + 2x2 = 0

Solving
108 + 5x + 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'.
54 + 2.5x + x2 = 0

Move the constant term to the right:

Add '-54' to each side of the equation.
54 + 2.5x + -54 + x2 = 0 + -54

Reorder the terms:
54 + -54 + 2.5x + x2 = 0 + -54

Combine like terms: 54 + -54 = 0
0 + 2.5x + x2 = 0 + -54
2.5x + x2 = 0 + -54

Combine like terms: 0 + -54 = -54
2.5x + x2 = -54

The x term is 2.5x.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5x + 1.5625 + x2 = -54 + 1.5625

Reorder the terms:
1.5625 + 2.5x + x2 = -54 + 1.5625

Combine like terms: -54 + 1.5625 = -52.4375
1.5625 + 2.5x + x2 = -52.4375

Factor a perfect square on the left side:
(x + 1.25)(x + 1.25) = -52.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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