b. b x 2y7 x b3 x y2 =
=b x 2y7 x b3 x y2
= 27b4y9.
c. 3m3 x (mn)4
= 3m3 x (mn)4
= 3m7n4.
d. (tn3)4 x4t3
= (tn3)4 x4t3 = 4t7n12
e. (2x3) x 3(x2y2)3 x 5y4
= 23 . x3 . 33 . x(2x3) . y(2x3) . 54 . y4
= 23 . 33 . 54 . x3 . x^6 . y6 . y4
= 23 . 33 . 54 . x(3+6) . y(6+4)
= 23 . 33 . 54 . x9 . y10
Soal nomor 4
a. 33 x 2 x 37