分式与二次根式,
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分式与二次根式,
分式与二次根式,
分式与二次根式,
原式=[(X-2)(X+1)]/[(X-3)(X+2)]
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯=(X-2)(X+2)(X+1)(X-1)
[(X+3)(X-2)]/[(X-1)(X+2)] ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ =(X²-1)/(X²-9)
(X-2)(X+2)(X+3)(X-3)