Question

ПОМОГИТЕ ПЖ ДАЮ 25 БАЛЛОВ (Все)

Answer 1

1) 15 a^2b^3/ 18 a^3b= 5 b^2/ 6a
2) (b^2-9)/(b^2+3b)= ((b-3)(b+3))/(b(b+3))= (b-3)/b
3) (x^2+6x+9)/(x^2-9)= ((x+3)(x+3))/ ((x-3)(x+3))= (x+3)/(x-3)