anonymous
  • anonymous
which factor do you cancel from the numerator and denominator to simplify x^2-3x-4/x^2-16
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
|dw:1371134596547:dw|
anonymous
  • anonymous
|dw:1371134701659:dw|
anonymous
  • anonymous
Is that the answer?

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mathstudent55
  • mathstudent55
You need to factor both the numerator and the denominator. You can only cancel out common factors in the numerator and denominator. Something being added is not a factor.
anonymous
  • anonymous
okay... |dw:1371135108671:dw| Like this?
mathstudent55
  • mathstudent55
No, that's not factoring. Factoring is taking something and expressing it as a multiplication of factors.
mathstudent55
  • mathstudent55
This is factoring: |dw:1371135046300:dw| Now cancel the common factor in the numerator and denominator.
anonymous
  • anonymous
oh... okay so |dw:1371135319067:dw| that?
mathstudent55
  • mathstudent55
Yes. The answer is what's left.
anonymous
  • anonymous
OHH XD thank you so much :D

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