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OpenStudy (anonymous):
Prove that the sum of 4 consecutive odd numbers are a multiple of 8?? (2n+1)+(2n+3)+(2n+5)+(2n+7) 8n+16???
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OpenStudy (cwrw238):
8n + 16 = 87m where m is a positive integer lhs is even so m must also be even
OpenStudy (cwrw238):
oh yes 8n + 16 is divisible by 8 you are right
OpenStudy (cwrw238):
lol - i misread your post - i took ?? to be 87?
OpenStudy (anonymous):
lol easily done.
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