## FeoNeo33 3 years ago Multiplying and Dividing Rational Expressions Question: http://i50.tinypic.com/24pjw51.png Possible answers -------------- (x-5)(x+4 --------- 2 (x+5)(x+4) --------- 2 (x+5)(x-4) --------- 2 (x-5)(x-4) --------- 2

1. pfenn1

$\frac{x^2+8x+15}{x-4} \times \frac{x^2-16}{2x+6}$First thing we want to do is factor the expressions if we can. Like take the 2 out of the denominator of the 2nd term.$2x+6=2(x+3)$Can you factor x^2 - 16? Hint: x^2 - a^2 = (x - a) (x + a)

2. FeoNeo33

Thanks, I kinda found the answer.

3. sonofa_nh

i can show you the steps if you want

4. sonofa_nh

(x+5)(x+4)/2

5. FeoNeo33

thanks ^, and I had that, lol, just needed like... checking? u know. Double check my work.

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