Question

add or subtract the rational expressions, as indicated, and simplify your answer

Answer 1

Do you have the actual problem?

Answer 2

yes i just submitted just one moment

Answer 3

\[\frac{ x+2 }{ x-3? }-\frac{ x-3 }{ x+5? }-\frac{ 1 }{ x^2+2x-15? }\]

Answer 4

Ok, factor the denominator of the fraction on the right

Answer 5

ok just one moment..........(x+5) (x-3)

Answer 6

Perfect. Now you have to make a common denominator in order to cleanly subtract all of these. Any idea on what that can be?

Answer 7

would the common denominator be the x+5 x-3

Answer 8

Yep! Now for the first fraction, All you need is an x+5, so you multiply that on the bottom, and you can leave it like (x-3)(x+5). But whatever you do to the bottom, you have to do to the top. So multiply the (x+5) to the top one as well

Answer 9

so it would look like this....\[\frac{ x+2 }{ x-3? }*\frac{ x+5 }{ ?x+5 }-\frac{ x-3 }{ x+5? }*\frac{ x+3 }{ ?x+3 }\]

Answer 10

No not really more like this:
\[\frac{ (x+2)(x-3) }{ (x-3)(x+5) }- \frac{(x-3)(x+5) }{ (x-3)(x+5) }- \frac{ 1 }{ (x-3)(x+5) }\]

Answer 11

what did i do wrong can u tell.......im looking at some notes we took in class....did you skip a step?? just asking

Answer 12

You made the x-3 a x+3, thats all
Now just for the first 2 fractions, multiply them out.

Answer 13

*The numerator only

Answer 14

so are u saying i multiply the numerator by (x+5)

Answer 15

The numerators should be multiplied out.. like use FOIL

Answer 16

ok so x^2-3x+2x-6??

Answer 17

ok let me try again i think i have it