А) 7 √3- √48+ √27 = √49*3 -√48 + √27=√126=13
б) √2( √8+4 √2) = √2(√8 +√16*2)= √2* √40 =√80
в)(√5+√3)(√5-√3) = √5^2 - √3^2= 5-3 = 2
А) 7 √3- √48+ √27 = √49*3 -√48 + √27=√126=13
б) √2( √8+4 √2) = √2(√8 +√16*2)= √2* √40 =√80
в)(√5+√3)(√5-√3) = √5^2 - √3^2= 5-3 = 2