Question

(ab - 9)(ab + 8)

Answer 1

...whats your question?

Answer 2

-5ab - 17

is the answer.

Answer 3

ab^2 -ab -72 maybe

Answer 4

its MULTIPLYING POLYNOMIALS BY POLYNOMIALS so how do i do the problem?

Answer 5

\[a^2b^2-ab-72\]

Answer 6

ignore the face that its ab for the moment, pretend its x
20 is the same as writing 5x4, but we still write 20

Answer 7

and apologies, bluesky's right, i should have put brackets in there