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Verdich [7]
3 years ago
14

If p is a positive integer, which could be an odd integer?

Mathematics
2 answers:
sdas [7]3 years ago
3 0
p > 0 \Rightarrow

2p+2 (even)

p^3-p (odd or even)

p^2 + p (even)

p^2 - p (even)

7p - 3 (ODD); 7p odd, 7p-3 = (odd)-(odd)=(odd)
WARRIOR [948]3 years ago
3 0
p>0\\\\(A)\ \ \ 2p+2=2(p+1)\ \rightarrow\ \ even\ number\\\\(B)\ \ \ p^3-p=p(p^2-1)=p(p-1)(p+1)\ \rightarrow\ \ even\ number\\\\(C)\ \ \ p^2+p=p(p+1)\ \rightarrow\ \ even\ number\\\\(D)\ \ \ p^2-p=p(p-1)\ \rightarrow\ \ even\ number\\\\(E)\ \ \ 7p-3=6p-4+p+1=2(3p-2)+p+1\\\\p-odd\  \rightarrow\ \ (p+1)- even\  \rightarrow\  (7p-3)-even\ number\\\\p-even\  \rightarrow\ \ (p+1)- odd\  \rightarrow\  (7p-3)-odd\ number\\\\Ans.\ E
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