解:9(2x-1)²=36(2x-1)²=42x-1=±22x=1±2x1=3/2 x2=-1/2
解:9(2x-1)^2=36(2x-1)^2=4(2x-1)^2-2^2=0(2X-1+2)(2X-1-2)=0(2X+1)(2X-3)=0 X1= -1/2X2=3/2