9﹙2x-1﹚²=25﹙x+1﹚²36x²-36x+9-25x²-50x-25=011x²-86x-16=0﹙11x+2﹚﹙x-8﹚=0x1=-2/11 x2=8
9(2x-1)²=25(x+1)²3(2x-1)= ± 5(x+1)① 3(2x-1)= 5(x+1) 6x-3=5x+5 x=8②3(2x-1)= -5(x+1) 6x-3= -5x-5 X= -2/11
8或-2/11