answers in the numerator am an =am–n x3 x7 a5 a2 =x =a =x =a answers with positive indices am an =am–n v3 v7 u5 u3 = = v u 1 1 = = v u 1 1 answers in the numerator only variables go in the numerator 4a5 8a7 8x9 4x7 am an = (8/4)a = =am–n x = = x a answers with positive indices 8v5 2v3 am an = 3u4 =am–n 6u v 1 = u 6/3 = = u 1 v answers with positive indices 8w3v5 2v2w5 2w2u3 4u4 am an = = =am–n w v u w = = w u w v answers with positive indices 9u3v2 3v7u5 2v2u5 4u3 am an = u = =am–n u v v = = u u v v answers in the numerator 2w3v5 8v2w5 9u3v2 3v7u5 = = am an v u =am–n w v = = v u w v |