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

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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