当1<x<5时,化简√x方-2x+1 -√x方-10x+25

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当1<x<5时,化简√x方-2x+1-√x方-10x+25当1<x<5时,化简√x方-2x+1-√x方-10x+25当1<x<5时,化简√x方-2x+1-√x方-10x+25当1<x<5时,化简√x方

当1<x<5时,化简√x方-2x+1 -√x方-10x+25
当1<x<5时,化简√x方-2x+1 -√x方-10x+25

当1<x<5时,化简√x方-2x+1 -√x方-10x+25
当1<x<5时,化简
√x方-2x+1 -√x方-10x+25
=√(x-1)²-√(x-5)²
=x-1-(5-x)
=2x-4
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=!x-1!-!x-5!
=(x-1)-(5-x)
=2x-6
!!为绝对值

√x方-2x+1 -√x方-10x+25=√(x-1)²-√(x-5)²
当1<x<5时,原式=x-1-(5-x)=2x-6