Rational expressions 15xy/x^2-y^2 - X-Y/X+Y
@sammixboo @whpalmer4 @Nnesha @peachpi
\[\huge\rm \frac{ 15xy }{ x^2-y^2} - \frac{ x-y }{ x+y }\] like this ?
if yes remember difference of square \[\huge\rm a^2 -b^2 = (a+b)(a-b)\] 2nd step ) find common denominator
3rd) cancel some stuff 4th) done!
@Nnesha Can you show a step by step i've been stuck for hours
@Nnesha Can you show a step by step i've been stuck for hours
oky i have 5 mints let's see :-) so x ^2 - y^2 = ???
difference of square^
(x+y)(x-y)?
yes right!
now find common factor
\[\huge\rm \frac{ 15xy - (x-y)(x+y)}{ (x+y)(x-y) }\] 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
got it ??
now just solve the numerator
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