初二数学(多项式除以单项式)语文(短文两篇)已知m^2+2m-1=0,求m^2+1/(m^2)的值.已知x^2-y^2=4xy,求(x^4)-(y^4)/(x^2y^2)的值.”晋陶渊明独爱菊”与其相关的诗句是?

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初二数学(多项式除以单项式)语文(短文两篇)已知m^2+2m-1=0,求m^2+1/(m^2)的值.已知x^2-y^2=4xy,求(x^4)-(y^4)/(x^2y^2)的值.”晋陶渊明独爱菊”与其相关的诗句是?
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初二数学(多项式除以单项式)语文(短文两篇)已知m^2+2m-1=0,求m^2+1/(m^2)的值.已知x^2-y^2=4xy,求(x^4)-(y^4)/(x^2y^2)的值.”晋陶渊明独爱菊”与其相关的诗句是?
初二数学(多项式除以单项式)语文(短文两篇)
已知m^2+2m-1=0,求m^2+1/(m^2)的值.
已知x^2-y^2=4xy,求(x^4)-(y^4)/(x^2y^2)的值.
”晋陶渊明独爱菊”与其相关的诗句是?

初二数学(多项式除以单项式)语文(短文两篇)已知m^2+2m-1=0,求m^2+1/(m^2)的值.已知x^2-y^2=4xy,求(x^4)-(y^4)/(x^2y^2)的值.”晋陶渊明独爱菊”与其相关的诗句是?
已知m^2+2m-1=0,求m^2+1/(m^2)的值.
方程二边同除以m:
m+2-1/m=0
m-1/m=-2
m^2+1/m^2=(m-1/m)^2+2=(-2)^2+2=6
已知x^2-y^2=4xy,求(x^4)-(y^4)/(x^2y^2)的值.
(x^2+y^2)^2=(x^2-y^2)^2+4x^2y^2=16x^2y^2+4x^2y^2=20x^2y^2
x^2+y^2=2根号5*|xy|
(x^4-y^4)/x^2y^2=(x^2+y^2)(x^2-y^2)/x^2y^2
=2根号5*|xy|*4xy/x^2y^2
=(+/-)8根号5
”晋陶渊明独爱菊”与其相关的诗句是?
采菊东篱下,悠然见南山