-6a^2+7a-20=0

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Solution for -6a^2+7a-20=0 equation:


Simplifying
-6a2 + 7a + -20 = 0

Reorder the terms:
-20 + 7a + -6a2 = 0

Solving
-20 + 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'.
3.333333333 + -1.166666667a + a2 = 0

Move the constant term to the right:

Add '-3.333333333' to each side of the equation.
3.333333333 + -1.166666667a + -3.333333333 + a2 = 0 + -3.333333333

Reorder the terms:
3.333333333 + -3.333333333 + -1.166666667a + a2 = 0 + -3.333333333

Combine like terms: 3.333333333 + -3.333333333 = 0.000000000
0.000000000 + -1.166666667a + a2 = 0 + -3.333333333
-1.166666667a + a2 = 0 + -3.333333333

Combine like terms: 0 + -3.333333333 = -3.333333333
-1.166666667a + a2 = -3.333333333

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 = -3.333333333 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667a + a2 = -3.333333333 + 0.3402777780

Combine like terms: -3.333333333 + 0.3402777780 = -2.993055555
0.3402777780 + -1.166666667a + a2 = -2.993055555

Factor a perfect square on the left side:
(a + -0.5833333335)(a + -0.5833333335) = -2.993055555

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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