Here's the question you clicked on:
Virgo91684
Multiply. (7b+7)^2 I get confused,do I use FOIL in this?
you dont have too. use a^2 + 2ab + b^2
I prefer distributive rule: (7b + 7)(7b + 7) = 7b(7b + 7) + 7(7b + 7) = 49b^2 + 49b + 49b + 49 = 49b^2 + 98b + 49
You know, distributive rule is an actual mathematical property. FOIL is just an acroymn someone made up.
Ah, ok I see now. I didn't know that,but it helps me sadly to think of First, Outer, Inner and Last
FOIL is something kids in high school learn.
distibutive is the easiest way of doing this. I learned distributive last year. helped alot.
Lol well they're teaching it in our college. Either way thank you so much for your help