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put this solution on YOUR website!Hi,
Just like normal fractions, with algebraic fractions you need to have a common denominator. When lookig for one, I suggest factorising as much as you can.
(x+3))
and
(x-3))
The lowest common denominator is going to be
(x+3)(x-3))
.
So we have to multiply the first fraction by
)
and mutiply the second one by
)
. This leaves us with:
}{(x+1)(x+3)(x-3)} - \frac{x+1}{(x+1)(x+3)(x-3)})
.
Can you do the subtraction now? Make sure you check your answer by putting some values into it and checking it is what it should be.
Kev
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