观察下列各式: 1×3+1=4=22, 2×4+1=9=32, 3×5+1=16=42,4×6+1=25=52,…….请

观察下列各式:
1×3+1=4=22, 2×4+1=9=32, 3×5+1=16=42,4×6+1=25=52
…….
请将你所发现的规律用含字母n的式子表示出来:________;

答案

p;【答案】n×(n+2)+1=解析:
p;【解析】由题中的几个式子可以得出规律:n×(n+2)+1=

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