x-2分之4-x+2等于多少是 (4-x+2)/(x-2)

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x-2分之4-x+2等于多少是 (4-x+2)/(x-2)

x-2分之4-x+2等于多少是 (4-x+2)/(x-2)
x-2分之4-x+2等于多少
是 (4-x+2)/(x-2)

x-2分之4-x+2等于多少是 (4-x+2)/(x-2)
=4/(x-2)-(x-2)
=[4-(x-2)²]/(x-2)
=(-x²+4x)/(x-2)

6—X/X—2

-x(x-4)/(x-2)

是(4-X+2)/(X-2) 还是X-(4-X+2) 还是 4/(X-2)-X+2 啊,能写得完整点吗,看不明白

=4/(x-2)-(x-2)
=[4-(x-2)]/(x-2)
=(-x+4x)/(x-2)
不过你这道题容易产生歧义,一些括号不知道在哪个地方