# Thread: simplifying each rational expression

1. ## simplifying each rational expression

Any help will be greatly appreciated, thanks in advance
1.(solved)

18y
___

9y^4

2.

4t+12
_____

t^2-9

2. Originally Posted by imbadatmath
Any help will be greatly appreciated, thanks in advance
1.

18y
___

9y^4

2.

4t+12
_____

t^2-16
1.)

$\frac{18y}{9y^4} = \frac{2}{y^2}$

2.)
$\frac{4t+12}{t^2-16} = \frac{4(t+3)}{(t+4)(t-4)}$ This can't be simplified.

3. Im sorry I just made a correction it was t^2-9

4. number 2 correct question is
4t+12
_____

t^2-9