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Mathematics 20 Online
OpenStudy (anonymous):

Factor each completely. n^2 - 11n + 10

OpenStudy (kc_kennylau):

Factor the consonant first, try and try and try!

OpenStudy (kc_kennylau):

Cross method?

OpenStudy (kc_kennylau):

For example, 10 can be (-2)x(-5). Try listing possible ways!

OpenStudy (anonymous):

ok

OpenStudy (kc_kennylau):

but -2 + -5 is not -11 :c

OpenStudy (kc_kennylau):

Find one that is xd

OpenStudy (anonymous):

ohhh ok so cants you do 10 times 1? because together that equals 11

OpenStudy (hockeychick23):

(n-10)(n-1)

OpenStudy (ilovecake):

10 times 1 is 10.......

OpenStudy (anonymous):

no no no you're supposed to multiply 10 by something that can add to make 11...

OpenStudy (kc_kennylau):

yep 10 times 1

OpenStudy (kc_kennylau):

but it's negative

OpenStudy (ilovecake):

Okay the closest one would be 1 because 10 times 2 is 20 so.... Then just do 10 times 1

OpenStudy (kc_kennylau):

@ilovecake do you have any idea what you're talking about

OpenStudy (ilovecake):

Yes......do you?

OpenStudy (hockeychick23):

yea, a negative times a negative is a positive, so when you distribute what i just factored: (n-10)(n-1) you get n^2-n-10n+10 which simplifies to be n^2-11n+10 which is what you want because that was your original equation. (n-10)(n-1) is your answer

OpenStudy (anonymous):

Thank you @hockeychick23

OpenStudy (ilovecake):

Yeah i agree hockeychick. The other person tries to make fights. He is obviously an idiot.

OpenStudy (anonymous):

can i ask you another one?

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