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anonymous
 one year ago
Anyone please help me
Expanding each integer in the expression 21 × 12, the result is [(2 × 101) + (1 × 100)] × [(1 × 101) + (2 × 100)]. Replace the 10s with x’s and then multiply this expression using FOIL. Compare it with the normal integer multiplication method used above: How are they similar? Show your work.
anonymous
 one year ago
Anyone please help me Expanding each integer in the expression 21 × 12, the result is [(2 × 101) + (1 × 100)] × [(1 × 101) + (2 × 100)]. Replace the 10s with x’s and then multiply this expression using FOIL. Compare it with the normal integer multiplication method used above: How are they similar? Show your work.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you help me, I just need some basic knowledge of this

dan815
 one year ago
Best ResponseYou've already chosen the best response.1okay so uhh, they say replace the 10s with xs

dan815
 one year ago
Best ResponseYou've already chosen the best response.1is there some typo in the question or something

dan815
 one year ago
Best ResponseYou've already chosen the best response.1because that is definately not the result of 21*12

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thank and how is the normal integer multipication method similar to FOIL

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No i dont think there is a typo

dan815
 one year ago
Best ResponseYou've already chosen the best response.1okay well you see you can do foil stuff with integer multiplication

dan815
 one year ago
Best ResponseYou've already chosen the best response.1for example 21* 12 = (20+1) * (10 +2 )

dan815
 one year ago
Best ResponseYou've already chosen the best response.1so if you break that up further you get this

dan815
 one year ago
Best ResponseYou've already chosen the best response.1(20+1) * (10 +2 ) = 20*(10+2) + 1*(10+2) = 20*10 + 20*2 + 1*10 + 1*2 =200 +40 + 10 + 2 = 252

dan815
 one year ago
Best ResponseYou've already chosen the best response.1Foil is a formula that is like a shortcut to this expansion

dan815
 one year ago
Best ResponseYou've already chosen the best response.1nvm, i dont wanna overload you with this stuff, its pointless

dan815
 one year ago
Best ResponseYou've already chosen the best response.1it's just expanding brackets thats all you need to know

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no i think i get the basics of this now at least

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was totally confused at first
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