bluecheezits bluecheezits 07-03-2018 Mathematics contestada Which expression is equivalent to -18a^-2 b^5/-12a^-4 b^-6? Assume a=0, b=0. a- 2a^2 b^11/3 b-2a^2 b^30/3 c-3a^2 b^11/2 d-3a^2 b^30/2