6a^2-64a-11=0

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Solution for 6a^2-64a-11=0 equation:


Simplifying
6a2 + -64a + -11 = 0

Reorder the terms:
-11 + -64a + 6a2 = 0

Solving
-11 + -64a + 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'.
-1.833333333 + -10.66666667a + a2 = 0

Move the constant term to the right:

Add '1.833333333' to each side of the equation.
-1.833333333 + -10.66666667a + 1.833333333 + a2 = 0 + 1.833333333

Reorder the terms:
-1.833333333 + 1.833333333 + -10.66666667a + a2 = 0 + 1.833333333

Combine like terms: -1.833333333 + 1.833333333 = 0.000000000
0.000000000 + -10.66666667a + a2 = 0 + 1.833333333
-10.66666667a + a2 = 0 + 1.833333333

Combine like terms: 0 + 1.833333333 = 1.833333333
-10.66666667a + a2 = 1.833333333

The a term is -10.66666667a.  Take half its coefficient (-5.333333335).
Square it (28.44444446) and add it to both sides.

Add '28.44444446' to each side of the equation.
-10.66666667a + 28.44444446 + a2 = 1.833333333 + 28.44444446

Reorder the terms:
28.44444446 + -10.66666667a + a2 = 1.833333333 + 28.44444446

Combine like terms: 1.833333333 + 28.44444446 = 30.277777793
28.44444446 + -10.66666667a + a2 = 30.277777793

Factor a perfect square on the left side:
(a + -5.333333335)(a + -5.333333335) = 30.277777793

Calculate the square root of the right side: 5.502524674

Break this problem into two subproblems by setting 
(a + -5.333333335) equal to 5.502524674 and -5.502524674.

Subproblem 1

a + -5.333333335 = 5.502524674 Simplifying a + -5.333333335 = 5.502524674 Reorder the terms: -5.333333335 + a = 5.502524674 Solving -5.333333335 + a = 5.502524674 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + a = 5.502524674 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + a = 5.502524674 + 5.333333335 a = 5.502524674 + 5.333333335 Combine like terms: 5.502524674 + 5.333333335 = 10.835858009 a = 10.835858009 Simplifying a = 10.835858009

Subproblem 2

a + -5.333333335 = -5.502524674 Simplifying a + -5.333333335 = -5.502524674 Reorder the terms: -5.333333335 + a = -5.502524674 Solving -5.333333335 + a = -5.502524674 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + a = -5.502524674 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + a = -5.502524674 + 5.333333335 a = -5.502524674 + 5.333333335 Combine like terms: -5.502524674 + 5.333333335 = -0.169191339 a = -0.169191339 Simplifying a = -0.169191339

Solution

The solution to the problem is based on the solutions from the subproblems. a = {10.835858009, -0.169191339}

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