Сократите дробь: а)2m+14/m^2-49 б)p^2-25q^2/2p-10q в)x^2-4x+4/x^2-2x г)3y^2+24y/y^2+16y+64 д)a^2+a+1/a^3-1 е)b+2/b^3+8

А) = 2(m+7)/(m-7)*(m+7) =2 / (m-7)
б) = (p-5q)(p+5q) / 2(p-5q) = (p+5q) /2
в) = (x-2)^2 / x(x-2) = (x-2) /x
г) =3y(y+8) / (y+8)^2 = 3y / (y+8)
д) =(а^2+a+1) / (a-1)(a^2+a+1) = 1 / (a-1)
e) = (b+2) / (b+2)(b^2-2b+4) = 1 / (b^2-2b+4)