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ILoVeMaTh3
Group Title
What is the factored form of x^2 + 6x + 8?
I got (x+4) (x+2)
 one year ago
 one year ago
ILoVeMaTh3 Group Title
What is the factored form of x^2 + 6x + 8? I got (x+4) (x+2)
 one year ago
 one year ago

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ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
You're right! Just expand again (FOIL)...
 one year ago

ILoVeMaTh3 Group TitleBest ResponseYou've already chosen the best response.0
so 5 and 3?
 one year ago

ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
Or use: 4+2 = 6 (coefficient of x) 4*2 = 8 (constant at the end)
 one year ago

ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
Rule is: the numbers you are looking for have sum 6 and product 8
 one year ago

ILoVeMaTh3 Group TitleBest ResponseYou've already chosen the best response.0
ah thanks so it is 4 and 2 because 4 + 2 = 6 and 4 x 2 = 8
 one year ago

ILoVeMaTh3 Group TitleBest ResponseYou've already chosen the best response.0
factoring makes so much sense now thanks
 one year ago

ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
Yes! Another one: x²+5x+6 = (x+2)(x+3) They're not all that easy though, because sometimes there are negative numbers involved, or there seem to be many numbers to choose from...
 one year ago

ILoVeMaTh3 Group TitleBest ResponseYou've already chosen the best response.0
yeah I see it now :)
 one year ago

ZeHanz Group TitleBest ResponseYou've already chosen the best response.1
E.g. this one: x²3x28 Sum = 3 (many possibilities, don't bother with them!) Prod. = 28...hmm that could be: (one of them should be negative, because product is negative ) 1, 28 or 1,28 no: sum goes wrong 2, 14 or 2, 14 no .... 4, 7 or 4, 7 ...yes! Sum of 4 and 7 is 3 So: (x7)(x+4) Now I will stop ;)
 one year ago
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