Răspuns:
Explicație pas cu pas:
a) 3√2 +7√2-10√2 = √2·(3+7-10) = √2·0 = 0
b) 6√13 - 4√13+5√13 = √13·(6-4+5) = 7√13
c) -34√7 +6√7 +18√7-9√7 = √7·(-34+6+18-9) = √7·(-19) = -19√7
d) 4√3 +7√3-2√3 = √3·(4+7-2) = 9√3
e) (2/3)·√6 - (1/4)·√6 - (1/5)·√6+(3/2)·√6 =
=√6·(²⁰⁾2/3 -¹⁵⁾1/4 -¹²⁾1/5 +³⁰⁾3/2) = √6·[(40-15-12+90)/60] =
= √6·103/60 = 103√6 /60