化简a(b²-1)+(a+1)(b²+1)=
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化简a(b²-1)+(a+1)(b²+1)=
化简a(b²-1)+(a+1)(b²+1)=
化简a(b²-1)+(a+1)(b²+1)=
解
a(b²-1)+(a+1)(b²+1)
=ab²-a+ab²+a+b²+1
=(ab²+ab²)+(a-a)+b²+1
=2ab²+b²+1