若(am+1bn+2)(a2n-1b2n)=a5b3,则求m+n的值
若(am+1bn+2)(a2n-1b2n)=a5b3,则求m+n的值....
若(am+1bn+2)(a2n-1b2n)=a5b3,则求m+n的值.
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晴空q441
推荐于2016-10-29
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(a
m+1b
n+2)(a
2n-1b
2n)=a
m+1×a
2n-1×b
n+2×b
2n=a
m+1+2n-1×b
n+2+2n=a
m+2nb
3n+2=a
5b
3.
∴m+2n=5,3n+2=3,解得:n=
,m=
,
m+n=
.
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