3x^2+24x+56=0

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Solution for 3x^2+24x+56=0 equation:


Simplifying
3x2 + 24x + 56 = 0

Reorder the terms:
56 + 24x + 3x2 = 0

Solving
56 + 24x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
18.66666667 + 8x + x2 = 0

Move the constant term to the right:

Add '-18.66666667' to each side of the equation.
18.66666667 + 8x + -18.66666667 + x2 = 0 + -18.66666667

Reorder the terms:
18.66666667 + -18.66666667 + 8x + x2 = 0 + -18.66666667

Combine like terms: 18.66666667 + -18.66666667 = 0.00000000
0.00000000 + 8x + x2 = 0 + -18.66666667
8x + x2 = 0 + -18.66666667

Combine like terms: 0 + -18.66666667 = -18.66666667
8x + x2 = -18.66666667

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = -18.66666667 + 16

Reorder the terms:
16 + 8x + x2 = -18.66666667 + 16

Combine like terms: -18.66666667 + 16 = -2.66666667
16 + 8x + x2 = -2.66666667

Factor a perfect square on the left side:
(x + 4)(x + 4) = -2.66666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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