Question

c) √2(3+√18-√8)-√3(-4+√12-√27)=
d) (√125+√80):(√20-√245+√320)=

Answer 1

Răspuns:

Explicație pas cu pas:

c) √2(3+3√2-2√2)-√3(-4+2√3-3√3)=√2(3+√2)-√3(-4-√3)=3√2+2+4√3+3=

=3√2+4√3+5

d)(5√5+4√5):(2√5-7√5+8√5)=9√5:3√5=3