导数运算习题 y=(x+1)^2(x-1)_数学解答

导数运算习题 y=(x+1)^2(x-1)

人气：202 ℃　时间：2020-05-31 09:48:35

解答

y'=(x^2+2x+1)'*(x-1)+(x^2+2x+1)*(x-1)'
=(2x+2)*(x-1)+(x^2+2x+1)*1
=(2x^2-2)+(x^2+2x+1)
=3x^2+2x-1