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Mathematics 18 Online
OpenStudy (anonymous):

factor: 98n^2 - 200

OpenStudy (saifoo.khan):

Factor out the GCF first. (in simple words, find out the common)

OpenStudy (anonymous):

so the GCF is 2

OpenStudy (anonymous):

so 2(49n^2 + 100)

OpenStudy (saifoo.khan):

Correct.. Next..

OpenStudy (anonymous):

and 2(7n-10)(7n-10)

OpenStudy (anonymous):

Correct.... now convert the terms inside to squares of some number

OpenStudy (anonymous):

ok thanks

OpenStudy (anonymous):

\[2 (7 n-10) (7 n+10) \]

OpenStudy (saifoo.khan):

Hey @Harkirat ! Long time no see?!

OpenStudy (anonymous):

it will be 2(7n-10)(7n+10)

OpenStudy (anonymous):

@saifoo.khan Yeah, just got bored doing the same things again and again.......How have u been??

OpenStudy (anonymous):

@tim538 I went back and checked... when u took out 2 as GCD, you made a mistake.... you should get 2(49n^2 - 100)

OpenStudy (saifoo.khan):

@Harkirat : Ah. I've been good. I have noticed that the ratio of old users is declining.

OpenStudy (anonymous):

@saifoo.khan Yeah, it becomes a little bit repetitive after a while........so now I come back only every now and then like today...

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