Question

how do i solve this? x^2 -4/x^2-1 multiplied by x+1/x+2

Answer 1

do you have to simplify?

Answer 2

yes, i have to multiply and simplify

Answer 3

the answer is 2 if I did my math right

Answer 4

No you didn't @zeesbrat3

Answer 5

actually it would be better if you factor the first fraction yo have
do you know how to do this?

Answer 6

Oh well, at least I tried. Then again maybe I shouldve written it down...

Answer 7

\[\huge \frac{x^2-4}{x^2-1} \times \frac{x+1}{x+2}\]
\[\huge \frac{(x+2)(x-2)}{(x+1)(x-1)}\times \frac{x+1}{x+2}\]

Answer 8

^best possible explanation :)

Answer 9

nphuongsun93 how did u do that?^^^

Answer 10

\[\huge x^2-4 = (x+2)(x-2)\]
\[\huge x^2-1 = (x+1)(x-1)\]

Answer 11

formula
\[\huge a^2 - b^2 = (a-b)(a+b)\]

Answer 12

can u help me with my questions plz?

Answer 13

@nique504 did you understand what @nphuongsun93 did?
what is the answer?

Answer 14

i think so, the answer would be x-2/x-2 ?

Answer 15

opps i meant x-2/x-1

Answer 16

YES!

Answer 17

yayy! haha thank you all for helping :)