(a^2+a+1)+(5a^2-8a+20)=

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Solution for (a^2+a+1)+(5a^2-8a+20)= equation:


Simplifying
(a2 + a + 1) + (5a2 + -8a + 20) = 0

Reorder the terms:
(1 + a + a2) + (5a2 + -8a + 20) = 0

Remove parenthesis around (1 + a + a2)
1 + a + a2 + (5a2 + -8a + 20) = 0

Reorder the terms:
1 + a + a2 + (20 + -8a + 5a2) = 0

Remove parenthesis around (20 + -8a + 5a2)
1 + a + a2 + 20 + -8a + 5a2 = 0

Reorder the terms:
1 + 20 + a + -8a + a2 + 5a2 = 0

Combine like terms: 1 + 20 = 21
21 + a + -8a + a2 + 5a2 = 0

Combine like terms: a + -8a = -7a
21 + -7a + a2 + 5a2 = 0

Combine like terms: a2 + 5a2 = 6a2
21 + -7a + 6a2 = 0

Solving
21 + -7a + 6a2 = 0

Solving for variable 'a'.

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

Divide each side by '6'.
3.5 + -1.166666667a + a2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -1.166666667a + -3.5 + a2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -1.166666667a + a2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -1.166666667a + a2 = 0 + -3.5
-1.166666667a + a2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-1.166666667a + a2 = -3.5

The a term is -1.166666667a.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667a + 0.3402777780 + a2 = -3.5 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667a + a2 = -3.5 + 0.3402777780

Combine like terms: -3.5 + 0.3402777780 = -3.159722222
0.3402777780 + -1.166666667a + a2 = -3.159722222

Factor a perfect square on the left side:
(a + -0.5833333335)(a + -0.5833333335) = -3.159722222

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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