Joke Collection Website - Joke collection - (1) x 3- 1 divided by x 2- 1? Use a dividing line in the middle to indicate the division number! ! ! (2) a 3-a 2+a-1divided by a(a- 1)

(1) x 3- 1 divided by x 2- 1? Use a dividing line in the middle to indicate the division number! ! ! (2) a 3-a 2+a-1divided by a(a- 1)

1、=(x- 1)(x^2+x+ 1)/(x- 1)(x+ 1)=(x^2+x+ 1)/(x+ 1)= x+ 1/(x+ 1)

2 、[ a^2(a- 1)+a- 1]/a(a- 1)=(a^2+ 1)/a

3、=(a-b)^5/[(a-b)^2]^3 =(a-b)^5/(a-b)^6 = 1/(a-b))

4, = minus (A+B) 4 divided by (B+A) 5 = 1/(A+B)