What is the result when like terms are combined in the expression 3a+4d+a+2d

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,