Multiply n/(n-3) X 9/(n+3) and explain all your steps.

Answer 1

These are two fractions. Just like this:

To multiply fractions you just multiply straight across so 2 times 4 over 3 times 5 or 8/15.

In this case:

you just multiply straight across. The numerator is 9n and the denominator is (n - 3)(n + 3). So the answer is:

The denominator CAN be multiplied out, although I wouldn't do so unless you are required to. If you did, you would get: