SOLUTION: Help,Please! take me for ever solve this problem,thanks in advance http://imageshack.us/photo/my-images/851/page672.jpg/ I need help number 7 and 19 the key number 7 , n=3 th

Question 475862: Help,Please! take me for ever solve this problem,thanks in advance
http://imageshack.us/photo/my-images/851/page672.jpg/
I need help number 7 and 19
the key number 7 , n=3
the key number 19 , n=3
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

Find a counterexample for statement.
is divisible by
answer:
--> is divisible by

Find a counterexample for statement.
is divisible by
answer:
--> is divisible by
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