Question

Scoateti factori de sub radical si aduceti expresia la o forma mai simpla:
a)√18-3√32+2√8-√72
b)0,4√12-0,9√27+1,3√75

Answer 1

a)√18-3√32+2√8-√72=
=3√2-12√2+4√2-6√2=
=7√2-18√2=-11√2

b)0,4√12-0,9√27+1,3√75 =
=0,8√3-2,7√3+6,5√3 =
=4,6√3