Question

Va rog!
Dau coroană
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Answer 1

Răspuns:

Explicație pas cu pas:

a) 3√2+7√2-10√2=(3√2+7√2)-10√2=10√2-10√2=0

b) 6√13-4√13+5√13=(6√13+5√13)-4√13=11√3-4√13=7√13

c) -34√7+6√7+18√7-9√7=(6√7+18√7)-34√7-9√7=24√7-43√7=-19√7

d) 4√3+7√3-2√3=(4√3+7√3)-2√3=11√3-2√3=9√3

e) (2/3)√6-(1/4)√6-(1/5)√6+(3/2)√6=√6·(2/3-1/4-1/5+3/2)=

√6·(2·20-1·15-1·12+3·30)/60√6·(40-15-12+90)/60= √6·103/60