(n+1)2÷(n+1)2+1=0.

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(n+1)2÷(n+1)2+1=0.(n+1)2÷(n+1)2+1=0.(n+1)2÷(n+1)2+1=0."设(n+1)2=x(x≥0)则有：x/(x+1)=0.98x=0.98x+0.980.02

(n+1)2÷(n+1)2+1=0.
(n+1)2÷(n+1)2+1=0.

(n+1)2÷(n+1)2+1=0.
"设(n+1)2=x(x≥0)
则有：
x/(x+1)=0.98
x=0.98x+0.98
0.02x=0.98
x=49
(n+1)2=x=49
n+1=±7
所以
n=8或n=-6"

应该是：
n=6
或
n=-8"

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