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Giúp e vs ạ. E cảm ơn.
View attachment 123850
a)2-16-2-2-5-8
b)3-8-3-2-4
c)3-10-3-1-5
d)1-8-1-2-5-2
e)2-8,5-6-9-1
f)1-3-1-3
g)1-6-2-3
h)1-(x+y/4)-x-y/2
i)10-36-10-3-18
j)14-22-7-1-21
B2:
CxHyOz