3a^2+6a+20=0

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Solution for 3a^2+6a+20=0 equation:


Simplifying
3a2 + 6a + 20 = 0

Reorder the terms:
20 + 6a + 3a2 = 0

Solving
20 + 6a + 3a2 = 0

Solving for variable 'a'.

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

Divide each side by '3'.
6.666666667 + 2a + a2 = 0

Move the constant term to the right:

Add '-6.666666667' to each side of the equation.
6.666666667 + 2a + -6.666666667 + a2 = 0 + -6.666666667

Reorder the terms:
6.666666667 + -6.666666667 + 2a + a2 = 0 + -6.666666667

Combine like terms: 6.666666667 + -6.666666667 = 0.000000000
0.000000000 + 2a + a2 = 0 + -6.666666667
2a + a2 = 0 + -6.666666667

Combine like terms: 0 + -6.666666667 = -6.666666667
2a + a2 = -6.666666667

The a term is 2a.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2a + 1 + a2 = -6.666666667 + 1

Reorder the terms:
1 + 2a + a2 = -6.666666667 + 1

Combine like terms: -6.666666667 + 1 = -5.666666667
1 + 2a + a2 = -5.666666667

Factor a perfect square on the left side:
(a + 1)(a + 1) = -5.666666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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