化简∶a/a-2b×√a²b-4ab²+4b³/a(0
问题描述:
化简∶a/a-2b×√a²b-4ab²+4b³/a(0
答
=a/(a-2b)× √[b(a-2b)²/a]
=a/(a-2b) ×|a-2b|/a ×√(ab)
=-√(ab)