a2/2b2 x 15b/9a b.9pq/5q2r : 3p2q/25qr2 dijawab ya

a²/ 2b² = a²b^-2 / 2
→ a²b^-2 / 2 * 15b *a^-1 / 9 = 15 b^1-2 a^2-1 /9(2) =15a/18 b
ingat a^-n = 1/ a^n
b. 9pq*q^-2r^-1/ 5 : 3p²q* q^-1 r^-2/25
= 9pq^-1r^-1(25)/ 3p² r^-2(5)
= 3p^-1 q^-1 r (5)
= 15p^-1 q^-1 r
Maaf kalau salah