11/99 will have a 5 then 88/99 will not have a 5
6, 12 18 24 30 36 42 48 54 60...
12, 24 36 48 60...
15, 30 45 60...
Voila. 60 shows up in all three. Its the first one to show up, hence lcm (least common multiple)
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Answer:
a
Step-by-step explanation:
.
If a×b=0, then a=0 or b=0
Now g(x)=0 for x=-9 or x=-8