anonymous
  • anonymous
What is the limit as t approaches -9 of the function t^2-81/ 2t^2+19t+9?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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inkyvoyd
  • inkyvoyd
factor the numerator and denom - hint for the numerator use difference of squares
anonymous
  • anonymous
(t+9)(t-9) how do i do the bottom
inkyvoyd
  • inkyvoyd
well since these problems always want you to cancel out common factors in the numerator and denom you know that the bottom has either factor t+9 or t-9

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More answers

inkyvoyd
  • inkyvoyd
there is no way the bottom is t-9 because the first degree coefficient is positive
inkyvoyd
  • inkyvoyd
therefore one of your factors must be t+9
DebbieG
  • DebbieG
And also notice, leading coeff of 2 means that you know that the first terms of your factoring must be t and 2t :) that will also help.
anonymous
  • anonymous
guys im sorry i copied the question wrong it's 2t^2-19t+9
inkyvoyd
  • inkyvoyd
in that case the factor must be t-9 because there is no way for it to be t+9 due to the -19
jdoe0001
  • jdoe0001
the top is easy pretty much just focus on factoring the denominator mainly
jdoe0001
  • jdoe0001
so see if you can get 2 binomials as factors from \(\bf 2t^2+19t+9 \implies (\square+\square)(\square+\square)\)

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