-1a^2+12a-6=0

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Solution for -1a^2+12a-6=0 equation:


Simplifying
-1a2 + 12a + -6 = 0

Reorder the terms:
-6 + 12a + -1a2 = 0

Solving
-6 + 12a + -1a2 = 0

Solving for variable 'a'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
6 + -12a + a2 = 0

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + -12a + -6 + a2 = 0 + -6

Reorder the terms:
6 + -6 + -12a + a2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -12a + a2 = 0 + -6
-12a + a2 = 0 + -6

Combine like terms: 0 + -6 = -6
-12a + a2 = -6

The a term is -12a.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12a + 36 + a2 = -6 + 36

Reorder the terms:
36 + -12a + a2 = -6 + 36

Combine like terms: -6 + 36 = 30
36 + -12a + a2 = 30

Factor a perfect square on the left side:
(a + -6)(a + -6) = 30

Calculate the square root of the right side: 5.477225575

Break this problem into two subproblems by setting 
(a + -6) equal to 5.477225575 and -5.477225575.

Subproblem 1

a + -6 = 5.477225575 Simplifying a + -6 = 5.477225575 Reorder the terms: -6 + a = 5.477225575 Solving -6 + a = 5.477225575 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + a = 5.477225575 + 6 Combine like terms: -6 + 6 = 0 0 + a = 5.477225575 + 6 a = 5.477225575 + 6 Combine like terms: 5.477225575 + 6 = 11.477225575 a = 11.477225575 Simplifying a = 11.477225575

Subproblem 2

a + -6 = -5.477225575 Simplifying a + -6 = -5.477225575 Reorder the terms: -6 + a = -5.477225575 Solving -6 + a = -5.477225575 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + a = -5.477225575 + 6 Combine like terms: -6 + 6 = 0 0 + a = -5.477225575 + 6 a = -5.477225575 + 6 Combine like terms: -5.477225575 + 6 = 0.522774425 a = 0.522774425 Simplifying a = 0.522774425

Solution

The solution to the problem is based on the solutions from the subproblems. a = {11.477225575, 0.522774425}

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