Question

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

Answer 1

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=126
3)(√162-10√2)√2=(9√2-10√2)√2=-√2√2=-2
4)(3√98-√128): √2=(3√(49.2)-√(64.2)):√2=(21√2-8√2):√2=13
5)4√5t- 3√80t/4-12√(125t/9)=4√5t-3√5t-20√5t=-19√5t, t≥0
6)(√c-5√d)(√d-√c)=√cd-c-5d+5√cd=6√cd-c-5d

Answer 2

спасибо

Answer 3

Net za čto. Do cvidanija!