5x-3分之2x÷25x²-9分之3×5x+3分之x
问题描述:
5x-3分之2x÷25x²-9分之3×5x+3分之x
答
=2x/(5x-3)×(5x+3)(5x-3)/3×x/(5x+3)
=2x²/3