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Virgo91684
 2 years ago
Multiply.
(7b+7)^2
I get confused,do I use FOIL in this?
Virgo91684
 2 years ago
Multiply. (7b+7)^2 I get confused,do I use FOIL in this?

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Kuoministers
 2 years ago
Best ResponseYou've already chosen the best response.1you dont have too. use a^2 + 2ab + b^2

Hero
 2 years ago
Best ResponseYou've already chosen the best response.3I prefer distributive rule: (7b + 7)(7b + 7) = 7b(7b + 7) + 7(7b + 7) = 49b^2 + 49b + 49b + 49 = 49b^2 + 98b + 49

Hero
 2 years ago
Best ResponseYou've already chosen the best response.3You know, distributive rule is an actual mathematical property. FOIL is just an acroymn someone made up.

Virgo91684
 2 years ago
Best ResponseYou've already chosen the best response.0Ah, ok I see now. I didn't know that,but it helps me sadly to think of First, Outer, Inner and Last

Hero
 2 years ago
Best ResponseYou've already chosen the best response.3FOIL is something kids in high school learn.

Umar97
 2 years ago
Best ResponseYou've already chosen the best response.2distibutive is the easiest way of doing this. I learned distributive last year. helped alot.

Virgo91684
 2 years ago
Best ResponseYou've already chosen the best response.0Lol well they're teaching it in our college. Either way thank you so much for your help
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