Question

Помогите пожалуйста!

Answer 1

$1. frac{8x}{30x^3y^2} frac{3y}{30x^3y^2} \ 2. frac{3c}{18a^4b^5} frac{2a^3b^3d}{18a^4b^5} \ 3. frac{x(y+5)}{(y-5)(y+5)} frac{z}{(y-5)(y+5)} \ 4. frac{(m+n)^2}{m(m-n)(m+n)} frac{2(2m-3n)}{m(m-n)(m+n)} \ 5. frac{y(x+1)}{xy(x-y)} frac{x(y-1)}{xy(x-y)} \ 6. frac{6a(a+b)}{(a-2b)(a+b)} frac{3a(a-2b)}{(a-2b)(a+b)} \ 7. frac{1+c^2}{(c-4)(c+4)} frac{-c(c+4)}{(c-4)(c+4)} \ 8. frac{(2m+9)(m+5)}{m^3-125} frac{m(m^2+5m+25)}{m^3-125}$