Question

19. Number of expression in x.y.z+ 1 is?
a) 4
b) 3
c) 2.
d) 1
20. Product of -4p & 7p is:-
a) 28p
b) -28p?
c) -28p
d) 28p?​

Answer 1

Answer:

19) 2

20) -28p²

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Answer 2

heya!!!

19) c)2

20) c) -28p