化简(x3-2x2-5x+6)/(x-1)
问题描述:
化简(x3-2x2-5x+6)/(x-1)
微积分求导数的题
答
(x³-2x²-5x+6)/(x-1)
=[x²(x-1)-x²-5x+6]/(x-1)
=[x²(x-1)-x(x-1)-6x+6]/(x-1)
=[x²(x-1)-x(x-1)-6(x-1)]/(x-1)
=[(x-1)(x²-x-6)]/(x-1)
=x²-x-6