①5x눀-2x-1⼀4x눀=-2x+3⼀4 ②2x눀=3(2x+1) ③x눀+3=3(x+1)

2025-03-06 22:22:27
推荐回答(1个)
回答1:

  5x²-2x-1/4=x²-2x+3/4
  5x²-x²-2x+2x-1/4-3/4=0
  4x²-1=0
  (2x-1)(2x+1)=0
  x=1/2或x=-1/2