(2x-3)²=9(2x+3)²
2x-3=±3(2x+3)
2x-3=3(2x+3) 或 2x-3=-3(2x+3)
2x-3=6x+9 或 2x-3=-6x-9
-4x=12 或 8x=-6
x1=-3 x2=-3/4
(5x-1)²=3(5x-1)
(5x-1)²-3(5x-1)=0
(5x-1)(5x-1-3)=0
(5x-1)(5x-4)=0
5x=1 或5x=4
x1=1/5 x2=4/5
(2x-3)²=9(2x+3)²
2x-3=±3(2x+3)
2x-3=3(2x+3) 或 2x-3=-3(2x+3)
2x-3=6x+9 或 2x-3=-6x-9
-4x=12 或 8x=-6
x1=-3 x2=-3/4
(5x-1)²=3(5x-1)
(5x-1)²-3(5x-1)=0
(5x-1)(5x-1-3)=0
(5x-1)(5x-4)=0
5x=1 或5x=4
x1=1/5 x2=4/5