0=48-2a-a^2

Solution for 0=48-2a-a^2 equation:

Simplifying
0 = 48 + -2a + -1a2

Solving
0 = 48 + -2a + -1a2

Solving for variable 'a'.

Combine like terms: 0 + -48 = -48
-48 + 2a + a2 = 48 + -2a + -1a2 + -48 + 2a + a2

Reorder the terms:
-48 + 2a + a2 = 48 + -48 + -2a + 2a + -1a2 + a2

Combine like terms: 48 + -48 = 0
-48 + 2a + a2 = 0 + -2a + 2a + -1a2 + a2
-48 + 2a + a2 = -2a + 2a + -1a2 + a2

Combine like terms: -2a + 2a = 0
-48 + 2a + a2 = 0 + -1a2 + a2
-48 + 2a + a2 = -1a2 + a2

Combine like terms: -1a2 + a2 = 0
-48 + 2a + a2 = 0

Factor a trinomial.
(-8 + -1a)(6 + -1a) = 0

Subproblem 1
Set the factor '(-8 + -1a)' equal to zero and attempt to solve:

Simplifying
-8 + -1a = 0

Solving
-8 + -1a = 0

Move all terms containing a to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + -1a = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -1a = 0 + 8
-1a = 0 + 8

Combine like terms: 0 + 8 = 8
-1a = 8

Divide each side by '-1'.
a = -8

Simplifying
a = -8
Subproblem 2
Set the factor '(6 + -1a)' equal to zero and attempt to solve:

Simplifying
6 + -1a = 0

Solving
6 + -1a = 0

Move all terms containing a to the left, all other terms to the right.

Add '-6' to each side of the equation.
6 + -6 + -1a = 0 + -6

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

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

Divide each side by '-1'.
a = 6

Simplifying
a = 6
Solution
a = {-8, 6}