√40÷√5-√3×√6+√2

问题描述:

√40÷√5-√3×√6+√2


√40÷√5-√3×√6+√2
=(√5×√8)÷√5-(√3×√3)×√2+√2
=√8-3√2+√2
=2√2-3√2+√2
=√2-√2
=0