mikaa_toxica13
What are the factors of 3x2 + 10x + 3?
(3x − 1)(x − 3)
(3x − 3)(x − 1)
(3x + 1)(x + 3)<---answer
(3x + 3)(x + 1)
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mikaa_toxica13
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okay wel what then
ryan123345
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foil them and see which one matches
mikaa_toxica13
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well its either B or C
mikaa_toxica13
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okay well how about u explain it and tell me what it is.
ryan123345
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You were right lol. I just had to do it on a piece of paper. Sorry
mikaa_toxica13
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okay which one. can u explain it. if u cant, then please jus get off.
ryan123345
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Ummm ive already passed Algebra 1 lol. I think i know what im talking about
ryan123345
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this is easy work
mikaa_toxica13
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well then u should have no problem explaining it then.
ryan123345
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okay
ryan123345
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|dw:1363725117676:dw|
mikaa_toxica13
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-_- EXPLAIN HOW TO GET THE ANSWER
ryan123345
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|dw:1363725141724:dw|
ryan123345
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or you can just factor it
aajugdar
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hehe
aajugdar
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what if they tell just to factorize without options
ryan123345
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she should have learned that in class...
aajugdar
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hmm,well
ok i will type that out
ryan123345
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type what out?
mikaa_toxica13
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well maybe i have a crappy teacher -_-
aajugdar
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factors
mikaa_toxica13
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which choice would be the answer ?
ryan123345
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you got it right... It would be c
mikaa_toxica13
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u said earlier it wasnt c. -_-
aajugdar
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hold on
aajugdar
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\[3x^2+10x+3\]
now multiply \[x^2\] coefficient 3 to the final 3
you will get 9
so split 10x in such a way that you get their multiplication 9
so 9*1 =9
and 9+1 =10
so
we write equation as
\[3x^2+9x+x+3\]
now
take 3x common
\[3x(x+3)+1(x+3)\]
which gives you
\[(x+3)(3x+1)\]
aajugdar
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i hope you got it
mikaa_toxica13
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i think so :)
aajugdar
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good :P