X^2-61X=-60怎么算
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X^2-61X=-60怎么算
X^2-61X=-60怎么算
X^2-61X=-60怎么算
X^2-61X=-60
X^2-61X+60=0
(x-60)(x-1)=0
x1=60 x2=1
X^2-61X=-60
X^2-61X+60=0
(x-1)(x-60)=0
x=1 x=60