1.m²+m-1=0,求m三次方+2m²=2004 2.a-b=2,a-c=1,求(2a-b-c)²+(c-a)²

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1.m²+m-1=0,求m三次方+2m²=2004 2.a-b=2,a-c=1,求(2a-b-c)²+(c-a)²
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1.m²+m-1=0,求m三次方+2m²=2004 2.a-b=2,a-c=1,求(2a-b-c)²+(c-a)²
1.m²+m-1=0,求m三次方+2m²=2004 2.a-b=2,a-c=1,求(2a-b-c)²+(c-a)²

1.m²+m-1=0,求m三次方+2m²=2004 2.a-b=2,a-c=1,求(2a-b-c)²+(c-a)²
1. m²+m-1=0,求m三次方+2m²+2004
m三次方+2m²+2004
=m(m²+m)+m²+2004
=m+m²+2004
=m²+m-1+2005
=2005
2. a-b=2,a-c=1,
(2a-b-c)²+(c-a)²
=(a-b+a-c)²+(a-c)²
=(2+1)²+1²
=9+1
=10

(12005
(2)10

很高兴为您
1) m²+m-1=0,即m^2+m=1
m^3+2m²+2004
=m(m²+m)+m²+2004
=m+m²+2004
=m²+m-1+2005
=2005
2) a-b=2,
a-c=1,
(2a-b-c)²+(c-a)...

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很高兴为您
1) m²+m-1=0,即m^2+m=1
m^3+2m²+2004
=m(m²+m)+m²+2004
=m+m²+2004
=m²+m-1+2005
=2005
2) a-b=2,
a-c=1,
(2a-b-c)²+(c-a)²
=(a-b+a-c)²+(a-c)²
=(2+1)²+1²
=9+1
=10
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