Question

I missed class and the teacher doesnt give a book so can someone help?
Use the box method to find the product of (x + 3)(x + 7).

Answer 1

I've never heard of the box method, but I will try to help

Answer 2

okay thank you very much

Answer 3

essentially I think the first thing you should do is take x times x, then x times 7 to get x^2+7x. then use that same process with the other numbers (like in the pic on step 2) to get 3x+21