2006-09-20 23:48:10 · 3 answers · asked by Caoimhe O 1 in Education & Reference ➔ Primary & Secondary Education
Is it 3?
2006-09-24 12:01:50 · answer #1 · answered by Moorglademover 6 · 0⤊ 0⤋
first factorise denominators which gives
1/ x(y - x) - 1/ y(y-x)
we now have to make both denominators the same so :
y / xy(y-x) - x / xy(y-x)
note we have to do the same top and bottom to keep the sum the same. The two fractions can now be combined to give :
y-x / xy(y-x)
finally cancel out the 'y-x' to get our answer of :
1/xy
all u have to do is follow normal fraction rules - substitute numbers for the letters if it helps.
2006-09-21 10:51:21 · answer #2 · answered by samthedog 3 · 0⤊ 0⤋
does it equate to 0??.. so far i onli can simplify. i got
(y^2-2xy-x^2)/(xy-x^2)(y^2-xy)
sorry
2006-09-21 02:45:55 · answer #3 · answered by nicole 2 · 0⤊ 0⤋