Question

Помогите пожалуйста!

Answer 1

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