6a-a^2=48

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Solution for 6a-a^2=48 equation:


Simplifying
6a + -1a2 = 48

Solving
6a + -1a2 = 48

Solving for variable 'a'.

Reorder the terms:
-48 + 6a + -1a2 = 48 + -48

Combine like terms: 48 + -48 = 0
-48 + 6a + -1a2 = 0

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

Divide each side by '-1'.
48 + -6a + a2 = 0

Move the constant term to the right:

Add '-48' to each side of the equation.
48 + -6a + -48 + a2 = 0 + -48

Reorder the terms:
48 + -48 + -6a + a2 = 0 + -48

Combine like terms: 48 + -48 = 0
0 + -6a + a2 = 0 + -48
-6a + a2 = 0 + -48

Combine like terms: 0 + -48 = -48
-6a + a2 = -48

The a term is -6a.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6a + 9 + a2 = -48 + 9

Reorder the terms:
9 + -6a + a2 = -48 + 9

Combine like terms: -48 + 9 = -39
9 + -6a + a2 = -39

Factor a perfect square on the left side:
(a + -3)(a + -3) = -39

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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