8/9(x+2)²=1/2(3x+1)²
16(x+2)²=9(3x+1)²
16x ² + 64x + 64 = 81x² + 54x + 9
65x² - 10x - 55 =0
13x² -2x -11 =0
(13x +11)(x-1) =0
x= -11/13 或者 1