a) 4x^2+8x = 4x(x+2)б) 3m-6n+mn-2n^2 = n(3-m)+2(-n)в) 9a^2-16 = (3a+4)(3a-4)г) y^3+18y^2+81y = y(y^2+18y+81) = y(y+9)(y+9)
a) 4x^2+8x = 4x(x+2)
б) 3m-6n+mn-2n^2 = n(3-m)+2(-n)
в) 9a^2-16 = (3a+4)(3a-4)
г) y^3+18y^2+81y = y(y^2+18y+81) = y(y+9)(y+9)