<prompt> Zingatia chaguo za kukokotoa zifuatazo gx zinazofafanuliwa kamax22008-1-1gx x1x21x4 1cdots x220071 - 1Tafuta g2.  <response>: Zidisha pande zote mbili kwa x-1; upande wa kulia huanguka kwa kinyume cha tofauti ya miraba.anzaalignx-1x22008-1-1gx x-1x1x21 x41cdots x220071 - x-1 x2-1 x21x4 1cdots x220071 - x-1 cdots kushotox22008-1kulia - x-1 x22008 - x mwishoalignKubadilisha x 2, tunakushoto222008-1- 1kulia cdot g2 222008-2 2kushoto222008-1-1kuliaKugawanya pande zote mbili kwa 2 22008-1, tunapata g2 2. 