Question

Expand: (5a + 2)(a + 4)

Answer 1

Answer:

5a^2+22a+8

Step-by-step explanation:

5a(a+4)2(a+4)

Then you times each of the brackets

5a^2+20a

+2a +8

____________

=5a^2 +22a +8

and that's ur answer. I like to line it up so it's easier. I don't know if u meant by this but yeah I think it is right