化简分式:(x-3)(x²-4)/(x²+3x+2)(x²-4x+3)
问题描述:
化简分式:(x-3)(x²-4)/(x²+3x+2)(x²-4x+3)
答
=(X-3)(X+2)(X-2)/(X+1)(X+2)(X-1)(X-3)
约去相同的=(X-2)/(X+1)(X-1)