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B. 3m^2/10n^2
C. 54kmn^3/12km^2
D. 6x^2-3x/yz
E. 3x^2-2x-1/2xy
F. p^2-q^3+pq-pq^2/3p^2q^2
maksud dari ^2 itu pangkat dua ya dan ^3 adalah pangkat 3 :))
3/p × q/2 = 3q / 2p
B.
m/2n × 3m/5n = 3m² / 10n²
C.
9mn/4k × 6kn² /3m² = 54kmn³ / 12km²
= 9n³/2m
D.
2x-1 /y × 3x/z = (2x-1)(3x) / yz
= (6x² - 3x) / yz
E.
(3x+1)/2x × (x-1)/y = (3x+1)(x-1) / 2xy
= (3x² - 3x + x - 1) / 2xy
= (3x² - 2x - 1) / 2xy
F.
p-q²/3p² × p+q/-q² = (p-q²)(p+q) / -3p²q²
= (p² + pq -pq² -q³) /-3p²q²
= (-q³ - pq² + p² + pq) / -3p²q²
Maaf,kalau salah.