若a>b>0>c,a+b+c=0,且|b+1|=|c+1|,求-a平方+2b-c-(a-4c-b)的值|b+1|=|c+1|,则有:b+1=-c-1 得:b+c=-2又:a+b+c=0 则有:a=2所以:-a平方+2b-c-(a-4c-b)=-a^2+2b-c-a+4c+b=-a^2-a+3(b+c)=-4-2-6=-12

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若a>b>0>c,a+b+c=0,且|b+1|=|c+1|,求-a平方+2b-c-(a-4c-b)的值|b+1|=|c+1|,则有:b+1=-c-1 得:b+c=-2又:a+b+c=0 则有:a=2所以:-a平方+2b-c-(a-4c-b)=-a^2+2b-c-a+4c+b=-a^2-a+3(b+c)=-4-2-6=-12
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若a>b>0>c,a+b+c=0,且|b+1|=|c+1|,求-a平方+2b-c-(a-4c-b)的值|b+1|=|c+1|,则有:b+1=-c-1 得:b+c=-2又:a+b+c=0 则有:a=2所以:-a平方+2b-c-(a-4c-b)=-a^2+2b-c-a+4c+b=-a^2-a+3(b+c)=-4-2-6=-12
若a>b>0>c,a+b+c=0,且|b+1|=|c+1|,求-a平方+2b-c-(a-4c-b)的值
|b+1|=|c+1|,则有:b+1=-c-1 得:b+c=-2
又:a+b+c=0 则有:a=2
所以:
-a平方+2b-c-(a-4c-b)
=-a^2+2b-c-a+4c+b
=-a^2-a+3(b+c)
=-4-2-6
=-12

若a>b>0>c,a+b+c=0,且|b+1|=|c+1|,求-a平方+2b-c-(a-4c-b)的值|b+1|=|c+1|,则有:b+1=-c-1 得:b+c=-2又:a+b+c=0 则有:a=2所以:-a平方+2b-c-(a-4c-b)=-a^2+2b-c-a+4c+b=-a^2-a+3(b+c)=-4-2-6=-12
|b+1|=|c+1|,则有:b+1=-c-1 得:b+c=-2
又:a+b+c=0 则有:a=2
所以:
-a平方+2b-c-(a-4c-b)
=-a^2+2b-c-a+4c+b
=-a^2-a+3(b+c)
=-4-2+6
=0

a=-b-c,由|b+1|=|c+1|得b=-c或b+c=-2,代入式中得(b+c)的平方+2b-c-(-b-c-4c-b)=(b+c)的平方+4(b+c)=0或者-4.
即当b=-c时答案为0
当b+c=-2时答案为-4

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