解方程,(2x-3)²=9(2x+3)² (5x-1)²=3(5x-1) 用适当方式解方程,需解法.
问题描述:
解方程,(2x-3)²=9(2x+3)² (5x-1)²=3(5x-1) 用适当方式解方程,需解法.
答
(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=-6x1=-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)(5...