Question

(Picture) MULTIPLYING POLYNOMIALS AND SIMPLIFYING EXPRESSIONS PLEASE HELP!!!!

Answer 1

Answer:

$12a^3 +2a^2 +23a+18$

Step-by-step explanation:

$(3a+2)(4a^2-2a+9)$

we multiply 3a+2 inside the parenthesis to find the product

first multiply 3a inside second parenthesis

$12a^3 - 6a^2 +27a$

now multiply +2 inside second parenthesis

$8a^2 - 4a + 18$

Now we combine it

$12a^3 - 6a^2 +27a+8a^2-4a+18$

combine like terms

$12a^3 +2a^2 +23a+18$