Question

Efectuati calculele : a) 18(√3-2√2)+15(2√3-3√2)-7(3√3-√2);
b) 5(4√3-3√5)-7(2√3+4√5)+2(3√3+6√5)
c) (18√2-24√3) : 6+2(4√3-3√2)-(30√3+15√2) : 5
Dau coronita !!!

Answer 1

a)18√3-36√2+30√3-45√2-21√3+7√2=
27√3-74√2
b)20√3-15√5-14√3-28√5+6√3+12√5=
12√3-31√5
c)3√2-4√3+8√3-6√2-6√3-3√2=
-6√2-2√3