grace98 grace98
  • 16-08-2017
  • Mathematics
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How do you do number 49

How do you do number 49 class=

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apologiabiology
apologiabiology apologiabiology
  • 16-08-2017
factor the difference of 2 perfect squares in the bottom

we get [tex]\frac{x-5}{(x-5)(x+5)}[/tex]
simplified, we get [tex]\frac{1}{x+5}[/tex]
now subsitte  5 for x and get 1/(5+5)=1/10
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