What is the product of the polynomials below? (6x3 + 3x)(x2 + 4)
2 Answers
May 28, 2018
You have written the question in an odd manner: I will assume you meant
In this case:
It is the same as
so expanding this:
we get
so just adding like terms:
May 28, 2018
Explanation:
Use FOIL (First Outer Inside Last)
- First:
6x^3 * x^2 = 6x^56x3⋅x2=6x5 - Outer:
6x^3 * 4 = 24x^36x3⋅4=24x3 - Inner:
3x * x^2 = 3x^33x⋅x2=3x3 - Last:
3x * 4 = 12x3x⋅4=12x
Add together and combine like terms.