Question

разложите на множители m^3+27n^3+m^2+6mn+9n^2

Answer 1

(m+3n)*(m^2-3mn+9n^2)+m^2+6mn+9n^2=(m+3n)*(m^2-3mn+9n^2)+(m+3n)^2=(m+3n)*(m^2-3mn+9n^2+m+3n)