几道二次根式计算题,急
问题描述:
几道二次根式计算题,急
①4√0.5-√2/3-(3√24-1/2√32)
②4√6×(-√2/3)÷√8
③3√5×√2/15×12/√3
④10-√5/√5-5√27-2√15/√3
答
①4√0.5-√2/3-(3√24-1/2√32)
=2√2-(√6)/3-(6√6-2√2)
=2√2-(√6)/3-6√6+2√2
=4√2-(19/3)√6