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anonymous

  • one year ago

Rational expressions 15xy/x^2-y^2 - X-Y/X+Y

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  1. anonymous
    • one year ago
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    @sammixboo @whpalmer4 @Nnesha @peachpi

  2. Nnesha
    • one year ago
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    \[\huge\rm \frac{ 15xy }{ x^2-y^2} - \frac{ x-y }{ x+y }\] like this ?

  3. Nnesha
    • one year ago
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    if yes remember difference of square \[\huge\rm a^2 -b^2 = (a+b)(a-b)\] 2nd step ) find common denominator

  4. Nnesha
    • one year ago
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    3rd) cancel some stuff 4th) done!

  5. anonymous
    • one year ago
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    @Nnesha Can you show a step by step i've been stuck for hours

  6. anonymous
    • one year ago
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    @Nnesha Can you show a step by step i've been stuck for hours

  7. Nnesha
    • one year ago
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    oky i have 5 mints let's see :-) so x ^2 - y^2 = ???

  8. Nnesha
    • one year ago
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    difference of square^

  9. anonymous
    • one year ago
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    (x+y)(x-y)?

  10. Nnesha
    • one year ago
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    yes right!

  11. Nnesha
    • one year ago
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    now find common factor

  12. Nnesha
    • one year ago
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    \[\huge\rm \frac{ 15xy - (x-y)(x+y)}{ (x+y)(x-y) }\] now solve x+y are same at both denominator so just write on time and x-y is a common denominator multiply top part with( x+y) denominator of first fraction is same as common denominator so t 15xy stay same

  13. Nnesha
    • one year ago
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    got it ??

  14. Nnesha
    • one year ago
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    now just solve the numerator

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