Question

rezolvati si mie va rog 



e) 6√5·(-√5 supra 30)

f) 1,(4)√75·(-2,4√50) (- 1 supra 26 √18 

Answer 1

e)6√5(-√5/30)=-(6x5)/30=-30/30=-1
f) =(14-1)/9x5√3x(-24/10x√50)(-1/78√2)=
=13/9x5√3(-24/10x5√2)(-1/78√2)=
=65√3/9x(-120√2/10)(-1/78√2)=
=(65√3x12√2)/(9x78√2)= simplif cu √2 si 2=
=(65√3x6)/(9x39)=390√3/351=simplif cu 3=130√3/117