(3倍的根号18+1\5根号50-4倍的根号1\2

(3倍的根号18+1\5根号50-4倍的根号1\2)\根号32

1个回答

[3√18+1/5*√50-4√(1/2)]/√32
=[3*3√2+1/5*5√2-2√(4*1/2)]/√32
=[9√2+√2-2√2]/(4√2)
=8√2/(4√2)
=2