Which is the value of the expression when a equals -2 and B equals (-3 3a^-3b^2/2a^-1b^0)^2

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?

It would take her 20 minutes.