Question

exercitiile 12 si 13 va rog dau coroana

Answer 1

12. a) 2√10-3√10+12√10-20√10=-9√10
b) √3-5√3+6√3-4√3=0
13. a)(60√3-10√3)÷√2500=50√3÷50=√3
b)(6√6-11√6)÷√6-(9√6-7√6)÷√3=-5√6÷√6-2√6÷√3=-5-2√2
c)(5√7-21√7)÷√7-(12√7-26√7)÷2√7=-16√7÷√7-14√7÷2√7=-16-7
=-23
coroana te rog si sper ca ti-am fost de ajutor