已知㎡-5m-1=0,求m^4+1/㎡的值速求

来源：学生作业帮助网编辑：六六作业网时间：2024/05/10 23:07:33

已知㎡-5m-1=0,求m^4+1/㎡的值速求已知㎡-5m-1=0,求m^4+1/㎡的值速求已知㎡-5m-1=0,求m^4+1/㎡的值速求m²-1=5m两边平方m^4-2m²+1=

已知㎡-5m-1=0,求m^4+1/㎡的值速求
已知㎡-5m-1=0,求m^4+1/㎡的值
速求

已知㎡-5m-1=0,求m^4+1/㎡的值速求
m²-1=5m
两边平方
m^4-2m²+1=25m²
m^4+1=27m²
(m^4+1)/m²=27

⑴-3xy^2-6x^2y
=-3xy(x+2y)
⑵(x+y)^2-4xy
=x^2+2xy+y^2-4xy
=x^2-2xy+y^2
=(x-y)^2
⑶(a+b)^2-16(a-b)^2
=(a+b)^2-(4a-4b)^2
=(a+b+4a-4b)(a+b-4a+4b)
=(5a-3b)(5b-3a)
⑷a^4-4a^2b^2+4b^4
=(a^2-2b^2)^2
⑸2x^2-7x+3
=2x^2-x-6x+3
=x(2x-1)-3(2x-1)
=(2x-1)(x-3)

已知m^2-5m-1=0,求(m^4+1)/m^2的值已知㎡-5m-1=0,求m^4+1/㎡的值速求已知m+1/m=5,求m²+1/m²,m的4次+1/m的四次! 已知m+1/m=5,求m²+1/m²,m的4次+1/m的四次! 已知m*m+m-1=0,求m*m*m+2m*m-2005 已知m^2-5m+1=0,求m^3+1/m^3 和m-1/m的值已知m的平方+m-1=0,求m³+2㎡+2009=? 急! 已知m²-7m+1=0求m²+m-²-5的值已知m²-5m-14=0,求(m-1)(2m-1)-(m+1)²+1的值已知,m²-5m-1=0,求2m²-5m+1/m²的值. 已知m²+3m+1=0,求m的4次方-m²+1分之3m² 已知m^2+m-1=0,求代数式m^3+5m^2+3m-2012的值已知m^2+m-1=0,求m^3+5m^2+3m-2009的值. 已知2m-5n=0,求（1+n/m-m/m-n）/(1-n/m-m/m+n)的值已知2m-5n=0,求(1+m分之n-m-n分之m)/(1-m分之n-m+n分之m)的值已知2㎡-1＝-m,求2×m∧3+5㎡+m的值已知m-1/m=3,m不等于0,求m^2-1/m^2,m^3-1/m^3,m^4-1/m^4 已知m+1/m=5,求m的平方+1/m的平方