八下数学、求过程、好评,谢谢!

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八下数学、求过程、好评,谢谢!
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八下数学、求过程、好评,谢谢!
八下数学、求过程、好评,谢谢!

 

八下数学、求过程、好评,谢谢!

(1)2m²-√17m+2=0
2m²+2=√17m
m²+1=√17m/2
m+1/m=√17/2
m²+2+1/m²=17/4
m²+1/m²=17/4-2
m²+1/m²=9/4
(2)m²+1/m²=9/4
m²-2+1/m²=9/4-2
(m-1/m)²=1/4
m-1/m=±1/2

(1)2m^2-√17M+2=0

2m^2+2=√17m
m≠0 m+1/m=√17/2
( m+1/m)^2=17/4
m^2+2+1/m^2=17/4
m^2+1/m^2=9/4
(2)m^2+2+1/m^2=17/4
m^2-2+1/m^2=1/4
( m-1/m)^2=1/4
m-1/m=±1/2