Question

Помогите пожалуйста ааааааа

Answer 1

1/9•а^2-0,25=(1/3•а)^2-(0,5)^2=
(1/3•а-0,5)(1/3•а+0,5)
24)100/49•х^2-(а/4)^2=
(10/7•х)^2-(а/4)^2=
(10/7•х-а/4)(10/7•х+а/4)
25)(3/5• b)^2-((a)^2/c)^2=
(3/5•b-a^2/c)(3/5•b+a^2/c)