若x²-x-2=0,则(x²-x)²-1分之x²-x+2的值等于多少?
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若x²-x-2=0,则(x²-x)²-1分之x²-x+2的值等于多少?
若x²-x-2=0,则(x²-x)²-1分之x²-x+2的值等于多少?
若x²-x-2=0,则(x²-x)²-1分之x²-x+2的值等于多少?
(X-1/2)²-9/4=0
X-1/2=±3/2
X1=2
X2=-1
(x²-x)²-1分之x²-x+2的值等于4/3
又:x²-x-2=0
则x²-x=2
(x²-x)²-1分之x²-x+2的值等于3分之4