2w^2+11w+30=0

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Solution for 2w^2+11w+30=0 equation:


Simplifying
2w2 + 11w + 30 = 0

Reorder the terms:
30 + 11w + 2w2 = 0

Solving
30 + 11w + 2w2 = 0

Solving for variable 'w'.

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

Divide each side by '2'.
15 + 5.5w + w2 = 0

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + 5.5w + -15 + w2 = 0 + -15

Reorder the terms:
15 + -15 + 5.5w + w2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 5.5w + w2 = 0 + -15
5.5w + w2 = 0 + -15

Combine like terms: 0 + -15 = -15
5.5w + w2 = -15

The w term is 5.5w.  Take half its coefficient (2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
5.5w + 7.5625 + w2 = -15 + 7.5625

Reorder the terms:
7.5625 + 5.5w + w2 = -15 + 7.5625

Combine like terms: -15 + 7.5625 = -7.4375
7.5625 + 5.5w + w2 = -7.4375

Factor a perfect square on the left side:
(w + 2.75)(w + 2.75) = -7.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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