Observe the following equations: 9-1 = 8, 16-4 = 12, 25-9 = 16, 36-16 = 20 Let n be a positive integer. The following equation is () A. (n+2)2-n2=4(n+1)B. (n+1)2-(n-1)2=4nC. (n+2)2-n2=4n+1D. (n+2)2-n2=2(n+1)
According to 9-1 = 8, 16-4 = 12, 25-9 = 16, 36-16 = 20 Let n be a positive integer and the rule is (n + 2) 2-n2 = 4 (n + 1)
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