anonymous
  • anonymous
Rational expressions 15xy/x^2-y^2 - X-Y/X+Y
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@sammixboo @whpalmer4 @Nnesha @peachpi
Nnesha
  • Nnesha
\[\huge\rm \frac{ 15xy }{ x^2-y^2} - \frac{ x-y }{ x+y }\] like this ?
Nnesha
  • Nnesha
if yes remember difference of square \[\huge\rm a^2 -b^2 = (a+b)(a-b)\] 2nd step ) find common denominator

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Nnesha
  • Nnesha
3rd) cancel some stuff 4th) done!
anonymous
  • anonymous
@Nnesha Can you show a step by step i've been stuck for hours
anonymous
  • anonymous
@Nnesha Can you show a step by step i've been stuck for hours
Nnesha
  • Nnesha
oky i have 5 mints let's see :-) so x ^2 - y^2 = ???
Nnesha
  • Nnesha
difference of square^
anonymous
  • anonymous
(x+y)(x-y)?
Nnesha
  • Nnesha
yes right!
Nnesha
  • Nnesha
now find common factor
Nnesha
  • Nnesha
\[\huge\rm \frac{ 15xy - (x-y)(x+y)}{ (x+y)(x-y) }\] 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
Nnesha
  • Nnesha
got it ??
Nnesha
  • Nnesha
now just solve the numerator

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