anonymous
  • anonymous
please help
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
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maheshmeghwal9
  • maheshmeghwal9
just factorise first fraction.
anonymous
  • anonymous
Factor your denominator and numerator. Hint: \[(a^2 -b^2)= (a+b)(a-b)\] (Denominator) Prod= 81 Sum = 18 So find two numbers that multiply to give 81 and add up to 19.

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maheshmeghwal9
  • maheshmeghwal9
\[x^2-81=(x+9)(x-9).\]
maheshmeghwal9
  • maheshmeghwal9
\[x^2+18x+81=(x+9)^2\]
maheshmeghwal9
  • maheshmeghwal9
now u can do it:)
maheshmeghwal9
  • maheshmeghwal9
gt it??
maheshmeghwal9
  • maheshmeghwal9
or not?
anonymous
  • anonymous
yeah i got it
maheshmeghwal9
  • maheshmeghwal9
good:)
anonymous
  • anonymous
^_^ thanx!
maheshmeghwal9
  • maheshmeghwal9
yw:)
anonymous
  • anonymous
No problem
maheshmeghwal9
  • maheshmeghwal9
anonymous
  • anonymous
that's easier to understand ^_^ appericate it
maheshmeghwal9
  • maheshmeghwal9
thanx:)
anonymous
  • anonymous
you're welcome!

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