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b. -45+5y
c.3xy+15x
d.-45p2+18pq (p2=p pangkat 2)
2 dikali 3 = 6
= 2x + 6
b. -5 dikali 9 = -45
-5 dikali -y = 5y
= -45 + 5y
c. 3x dikali y = 3xy
3x dikali 5 = 15x
= 3xy + 15x
d. -9p dikali 5p = -45p²
-9p dikali -2q = 18pq
= -45p² + 18pq