(a-1/a²-4a+4-a+2/a²-2a)÷(4/a-1)
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(a-1/a²-4a+4-a+2/a²-2a)÷(4/a-1)
=((a-1)/(a-2)²-(a+2)/a(a-2))×(a-1)/4
=(a-1)²/4(a-2)²-(a-1)(a+2)/4a(a-2)
=[a(a-1)²-(a-1)(a+2)(a-2)]/4a(a-2)²
=(a³-2a²+a-a³+a²+4a-4)/4a(a-2)²
=(-a²+5a-4)/4a(a-2)²
=-(a-1)(a-4)/4a(a-2)²
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
=((a-1)/(a-2)²-(a+2)/a(a-2))×(a-1)/4
=(a-1)²/4(a-2)²-(a-1)(a+2)/4a(a-2)
=[a(a-1)²-(a-1)(a+2)(a-2)]/4a(a-2)²
=(a³-2a²+a-a³+a²+4a-4)/4a(a-2)²
=(-a²+5a-4)/4a(a-2)²
=-(a-1)(a-4)/4a(a-2)²
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
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