Question

Помогите сделать 154.

Answer 1

a)=$\frac{4a+8+5a}{(a+2)^2} = \frac{9a+8}{(a+2)^2}$ б)=$\frac{12y}{(x-y)^2} + \frac{9}{x-y} = \frac{12y+9x-9y}{(x-y)^2} = \frac{9x+3y}{(x-y)^2}$ в)=$\frac{p+21p+7}{(3p+1)^2} = \frac{22p+7}{(3p+1)^2}$ г)=$\frac{8m}{(m-n)^2} + \frac{2}{m-n} = \frac{8m+2m-2n}{(m-n)^2} = \frac{10m-2n}{(m-n)^2}$