Question

P(x)=mx(1+x)+n(x+p)+x3

Answer 1

P(x) = mx(1 + x) + n(x + p) + x³

como dice " P(x) " se deduce que x es la incognita.

P(x) = mx+mx² + nx + np +x³

P(x) = x³ + mx² + mx +nx + np

P(x) = x(x² +mx +m + n) +np

P(x)= x(x² + m(x+1) +n) +np