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Sonikay
 2 years ago
(8i)(15i)
Sonikay
 2 years ago
(8i)(15i)

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SmoothMath
 2 years ago
Best ResponseYou've already chosen the best response.2Foil \[i^2 = (1)\] group like terms

lgbasallote
 2 years ago
Best ResponseYou've already chosen the best response.0you know how to FOIL right?

lgbasallote
 2 years ago
Best ResponseYou've already chosen the best response.0you should give a medal to the person who helped you so he'll know you got it ;D

radar
 2 years ago
Best ResponseYou've already chosen the best response.1If you don't like FOIL you might want to try to multiply the "ole fashion way" 8 i 15i  8+i +40i +5i^2  8 +41i5 Consolidating: 3+41i

SmoothMath
 2 years ago
Best ResponseYou've already chosen the best response.2Oh, I like that, Radar. Never actually seen that.

radar
 2 years ago
Best ResponseYou've already chosen the best response.1Same thing as foil, but in a way you can see it.

radar
 2 years ago
Best ResponseYou've already chosen the best response.1Being 73 yrs old, that was the way I first saw it, but now most do it mentally using foil.

SmoothMath
 2 years ago
Best ResponseYou've already chosen the best response.2Oh my. Old guy is tech savvy. =D
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