Respuesta :
the given expression in
(x+x^3+x^4).(x+x^2+x^3).(x+x^2+x^3+x^4)
on applying distributive property:(a+b).(x+y) = a*x+a*y+b*x+b*y
we get,
x^3 + 3x^4 + 4x^5 + 6x^6 + 7x^7 + 6x^8 + 5x^9 + 3x^10 + x^11
the given expression in
(x+x^3+x^4).(x+x^2+x^3).(x+x^2+x^3+x^4)
on applying distributive property:(a+b).(x+y) = a*x+a*y+b*x+b*y
we get,
x^3 + 3x^4 + 4x^5 + 6x^6 + 7x^7 + 6x^8 + 5x^9 + 3x^10 + x^11