2x^2+15x+36=0

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Solution for 2x^2+15x+36=0 equation:


Simplifying
2x2 + 15x + 36 = 0

Reorder the terms:
36 + 15x + 2x2 = 0

Solving
36 + 15x + 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'.
18 + 7.5x + x2 = 0

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + 7.5x + -18 + x2 = 0 + -18

Reorder the terms:
18 + -18 + 7.5x + x2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 7.5x + x2 = 0 + -18
7.5x + x2 = 0 + -18

Combine like terms: 0 + -18 = -18
7.5x + x2 = -18

The x term is 7.5x.  Take half its coefficient (3.75).
Square it (14.0625) and add it to both sides.

Add '14.0625' to each side of the equation.
7.5x + 14.0625 + x2 = -18 + 14.0625

Reorder the terms:
14.0625 + 7.5x + x2 = -18 + 14.0625

Combine like terms: -18 + 14.0625 = -3.9375
14.0625 + 7.5x + x2 = -3.9375

Factor a perfect square on the left side:
(x + 3.75)(x + 3.75) = -3.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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