## unimatix one year ago Some algebra help

1. unimatix

I'm trying to get $\frac{ 1 }{ xy + y^2 } - \frac{ 1 }{ xy }$ Into $-\frac{ y }{ x(x+y) }$

2. Nnesha

how did you get that answer ?

3. Nnesha

check the numerator i don't think its y

4. Nnesha

first step) take out the common factor (xy+y^2) and then find common denominator

5. Nnesha

what is common in these 2 terms xy+y^2?