已知3(5x+2)+5<4x-6(x+1),化简√(x+1)的平方-|1-x|
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已知3(5x+2)+5<4x-6(x+1),化简√(x+1)的平方-|1-x|已知3(5x+2)+5<4x-6(x+1),化简√(x+1)的平方-|1-x|已知3(5x+2)+5<4x-6(x+1),
已知3(5x+2)+5<4x-6(x+1),化简√(x+1)的平方-|1-x|
已知3(5x+2)+5<4x-6(x+1),化简√(x+1)的平方-|1-x|
已知3(5x+2)+5<4x-6(x+1),化简√(x+1)的平方-|1-x|
3(5x+2)+5<4x-6(x+1)
15x+6+5<4x-6x-6
15x-4x+6x<-6-6-5
17x<-17
x<-1
x+1<0
1-x>0
则:
√(x+1)²-|1-x|
=|x+1|-|1-x|
=-(x+1)-(1-x)
=-x-1+x-1
=-2
解不等式得:x<-1
所以x+1<0,1-x>0
所以根号下(x+1)^2-|1-x|=-1-x-(1-x)=-2
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