👤

Efectuați:
3√18•(2√72-3√288+5√1152-7√648)=?


Răspuns :

3√18(2√72-3√288+5√1152-7√648) =

3*3√2*(2*6√2-3*12√2+5*24√2-7*18√2) =

= 9√2*(12√2-36√2+120√2-126√2) =

= 9√2*(-30√2) =

= -540