Simplify the expression:
1/y - 1/y-3
(y-3-y)/(y(y-3)) = -3/(y^2-3y)
huh? what is this? lol...
1/y-1/y = 0...
then -3 = -3 duh?
To simplify the expression 1/y - 1/(y-3), we need to find a common denominator for the two fractions.
The common denominator for y and (y-3) is y(y-3). To obtain this, we multiply the first fraction by (y-3)/(y-3) and the second fraction by y/y:
[1/y - 1/(y-3)] * [(y-3)/(y-3)] * [y/y]
This simplifies to:
[(y-3) - y] / [y(y-3)]
Simplifying further, we have:
[(y-3 - y)] / [y(y-3)]
Which becomes:
[-3] / [y(y-3)]
So the simplified expression is -3 / [y(y-3)].