3 (-9p)=4pp等于多少

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3(-9p)=4pp等于多少3(-9p)=4pp等于多少3(-9p)=4pp等于多少-27p=4p,即:31p=0,所以p=0

3 (-9p)=4pp等于多少
3 (-9p)=4p
p等于多少

3 (-9p)=4pp等于多少
-27p=4p,即:31p=0,所以p=0