anonymous
  • anonymous
which is NOT a factor of 2x^2-32 ? A) x^2-32 B) 2 C) x-4 D) x^2-16 PLEASE HELP ME
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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DebbieG
  • DebbieG
If you fully factor the expression, it will be easier for you to see what is/is not a factor. First you have a GCF that you can pull out, so always start there. What you will be left with is a difference of squares... do you know how to factor that?
DebbieG
  • DebbieG
Or, you can just look to see which of the choices is clearly NOT a factor, because you can't multiply it by anything to get back the expression \(2x^2-32\)
anonymous
  • anonymous
ok hold on im going to try it

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DebbieG
  • DebbieG
(that is, one of them is obviously NOT a factor, but I still think it's a good opportunity for you to factor the whole thing and then you can also see that the other 2 ARE clearly factors. :)
anonymous
  • anonymous
is the answer 2 ?
DebbieG
  • DebbieG
The answer? you mean the GCF?
anonymous
  • anonymous
yea
DebbieG
  • DebbieG
Oh, sorry.... i missed that "2" in the answer choices... lol. Well... if 2 is not a factor, then there is NOTHING that I can multiply 2 by and get back to the original expression. \(2\cdot?=2x^2-32\) Is that true??
anonymous
  • anonymous
oh wait, would it be x^2-32 ?
DebbieG
  • DebbieG
right! because for all of the others, you can multiply them by something and get back the original expression! :)
anonymous
  • anonymous
yay, I understand it now
anonymous
  • anonymous
i need help with another question
DebbieG
  • DebbieG
You should post it as a new question. :) best way to get help is to post questions separately. I'll be on and off the site as I'm working on some other things, but if I can't respond, I'm sure someone will! :)
anonymous
  • anonymous
alright thanks!

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