The expression 3x^-1 - x^-3 * (y + 2) can be simplified by breaking it down into smaller parts and performing the operations step by step.
Starting with the expression inside the parenthesis (y + 2):
y + 2 = (y) + (2)
Next, we can multiply x^-3 with the result of the expression inside the parenthesis:
x^-3 * (y + 2) = x^-3 * (y) + x^-3 * (2)
= x^-3 * y + 2x^-3
Finally, we can subtract this result from 3x^-1:
3x^-1 - x^-3 * (y + 2) = 3x^-1 - (x^-3 * y) - (x^-3 * 2)
= 3x^-1 - x^-3 * y - 2x^-3
This gives us the simplified form of the expression.