√18=3√2 √32=4√2 √8=2√2 √72=6√2
3√2-3*4√2+2*2√2 -6√2=3√2-12√2+4√2=-5√2
3√2-12√2+4√2=-5√2-6√2=-11√2
3√2-12√2+4√2=-5√2-6√2= -11√2

Răspunsuri

2014-02-07T13:36:27+02:00
3radical din 2-3*4radical din 2+4radical din 2-8=-5 radical din 2-8