20+17a+18a^2=

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Solution for 20+17a+18a^2= equation:


Simplifying
20 + 17a + 18a2 = 0

Solving
20 + 17a + 18a2 = 0

Solving for variable 'a'.

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

Divide each side by '18'.
1.111111111 + 0.9444444444a + a2 = 0

Move the constant term to the right:

Add '-1.111111111' to each side of the equation.
1.111111111 + 0.9444444444a + -1.111111111 + a2 = 0 + -1.111111111

Reorder the terms:
1.111111111 + -1.111111111 + 0.9444444444a + a2 = 0 + -1.111111111

Combine like terms: 1.111111111 + -1.111111111 = 0.000000000
0.000000000 + 0.9444444444a + a2 = 0 + -1.111111111
0.9444444444a + a2 = 0 + -1.111111111

Combine like terms: 0 + -1.111111111 = -1.111111111
0.9444444444a + a2 = -1.111111111

The a term is 0.9444444444a.  Take half its coefficient (0.4722222222).
Square it (0.2229938271) and add it to both sides.

Add '0.2229938271' to each side of the equation.
0.9444444444a + 0.2229938271 + a2 = -1.111111111 + 0.2229938271

Reorder the terms:
0.2229938271 + 0.9444444444a + a2 = -1.111111111 + 0.2229938271

Combine like terms: -1.111111111 + 0.2229938271 = -0.8881172839
0.2229938271 + 0.9444444444a + a2 = -0.8881172839

Factor a perfect square on the left side:
(a + 0.4722222222)(a + 0.4722222222) = -0.8881172839

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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