Question

розкладіть на множники:
​

Answer 1

6) m^3 + 6mn + 27n%3 +m^2+6mn+9n^2 = m^3 +27n^3 +m^2 +6mn +9n^2 = (m + 3n) (m^2-3nm + n^2 ) + (m+3n)^2 = m+3n ) (m^2-3nm+n^2+m +3n )
7 ) а^2+2аb+b^2-c^2+4cd-4d^2 = (a+b)^2 -(c^2 -4cd+4d^2) = (a+b)^2-(c-2d)^2 (a+b-(c-2d))•(a+b+(c-2d))