решите пж срочно !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

спасибо

Net za čto. Do cvidanija!

1)2√5-√125+3√80=2√5-5√5+12√5=9√5   (√125=√(25.5)=√25√5=5√5,√80=√(16.5)=√16√5=4√5)2)√6.7√54=√6.7√(9.6)=7√6√9√6=7.6.3=1263)(√162-10√2)√2=(9√2-10√2)√2=-√2√2=-24)(3√98-√128): √2=(3√(49.2)-√(64.2)):√2=(21√2-8√2):√2=135)4√5t- 3√80t/4-12√(125t/9)=4√5t-3√5t-20√5t=-19√5t, t≥06)(√c-5√d)(√d-√c)=√cd-c-5d+5√cd=6√cd-c-5d