How would i begin factoring this expression: (x^-2)-(y^-2)/(x^-1)-(y^-1) (reads x to the negative 2 minus y to the negative 2...) I just need somewhere to start...
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Originally Posted by nascar77 How would i begin factoring this expression: (x^-2)-(y^-2)/(x^-1)-(y^-1) (reads x to the negative 2 minus y to the negative 2...) I just need somewhere to start... Try writing them with positive powers first... .
Originally Posted by nascar77 How would i begin factoring this expression: (x^-2)-(y^-2)/(x^-1)-(y^-1) (reads x to the negative 2 minus y to the negative 2...) I just need somewhere to start... The first thing I would do is multiply both numerator and denominator by : You should be able to factor easily and .
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