8 + 2x
————
x^2 - 4
Explanation:
Factor
Factor out the negative sign
Using a^2 - b = (a - b)(a + b), factor the expression
Factor out the negative sign from the expression and reorder the terms
Determine the sign of the fraction
Write all numerators above the least common denominator (x - 2)x(x + 2)
Distribute 2 through the parentheses
Using (a - b)(a + b) = a^2 - b^2
Add the numbers
And done.
