Question

Multiplying and Dividing Rational Expressions

Question: http://i50.tinypic.com/24pjw51.png

Possible answers
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(x-5)(x+4
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2

(x+5)(x+4)
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2

(x+5)(x-4)
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2

(x-5)(x-4)
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2

Answer 1

\[\frac{x^2+8x+15}{x-4} \times \frac{x^2-16}{2x+6}\]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)

Answer 2

Thanks, I kinda found the answer.

Answer 3

i can show you the steps if you want

Answer 4

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

Answer 5

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