anonymous
  • anonymous
I need help with this section that I'm on rational expressions here's one of the problems 18/-11x and it says to list all numbers for which each rational expression is undefined
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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phi
  • phi
You do not want to ever divide by 0. Will any x make the denominator = 0? If so, the expression will be undefined for that x value
anonymous
  • anonymous
I dont exactly get it I need help solving it or someone to show me
phi
  • phi
Look at \[\frac{18}{-11x} \] the bottom means -11 times x the whole thing means 18 divided by -11x if 18 is divided by 0 you can not get an answer. It is undefined. Is there anyway for the bottom -11x to be zero? -11 times some number x = zero? Is there any number when you multiply it times -11 gives you zero? If so, that is the x value you cannot use.

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anonymous
  • anonymous
ok thxz I got it now.....Im not very good at factoring you think you can just help me with one problem from each set in this section just so i can get an understanding please
phi
  • phi
make your question a new post, please.
anonymous
  • anonymous
k

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