1500/x-1500/x+10 计算 )
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1500/x-1500/x+10 计算 )
1500/x-1500/x+10 计算 )
1500/x-1500/x+10 计算 )
1500/x-1500/x+10
=1500[1/x-1/(x+10)]
=1500[(x+10-x)/x(x+10)]
=15000/x(x+10)
1500/x-1500/x+10
=(1500/x-1500/x)+10
=0+10
=10
1500/x-1500/x+10
=1500×(1/x-1/x+10)
=1500× (x+10-x)/x(x+10)
=15000/x(x+10)
1500/x-1500/x+10 计算 )
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