MU(X1)=U(X1)'=3X2çå¹³æ¹
MU(X2)=U(X2)'=6X1X2
å 为MUX1*P2=MUX2*P1
æ以X2=(4/3)X1
åP1=20å
ï¼P2=30å
ï¼P1X1+P2X2=540
å¾X1=9,X2=12
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