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