Question

simplify the rational expression:
x+4
---------
x^2+5x+4

Answer 1

how can you factotizing x^2 +5x +4 =0 ?

Answer 2

do you know it ?

Answer 3

idk

Answer 4

:(

Answer 5

so one little help
x*x +x +4x +4 =0

than now what can you factorizing out from the first two terms and from 3rd and 4rd ?

Answer 6

x(x+1) +4(x+1)=0

yes ? than now you continue and factoriz out the (x+1) and will get (x+1)(x+4)=0

Answer 7

so using this you will can rewriting your exercise how ?

Answer 8

x+4
---------- = ...
(x+1)(x+4)

hope so much that you will can finich this ,yes ?

Answer 9

wouldnt the x+4 on the top and bottom cancel out?

Answer 10

yes simplifie it easy

Answer 11

so its just x+1?

Answer 12

why just x+1 ?

Answer 13

idk...im asking

Answer 14

so if you cancel out the (x+4) from top and bottom ,so from numerator and denominator what will reamining there ?

Answer 15

nothing on the top and the x+1 on the bottom?

Answer 16

when you simplifie 2/4 = how many ?

this is just an example for you can understanding it why not is right your answer

Answer 17

1/2...

Answer 18

yes right so than in case of your exercise here npw what will reamining ?

Answer 19

i dont know..i dont understand

Answer 20

why ?

if you simplifie 2/4 this is equal 1/2 so than if you simplifie

x+4
----------- = ----------------
(x+1)(x+4)

so how many will reamaning on the top ? nothing is not possible

Answer 21

i thought that x+4 cancelled out on the top and bottom???

Answer 22

yes is right but in my example when there are 2/4 so there canceled out 2 and top and bottom too but your answer was that resulted here in this case 1/2

so than why ?

Answer 23

why 1/2 and not just 2 ?

Answer 24

so it would be 1
----
(x+1)

Answer 25

yes sure this is the right answer

but do you understand it now ?

Answer 26

i understand this one lol...i have a lot of problems to do still but i have class at 1130 ):

Answer 27

thank you (:

Answer 28

was my pleasure

good luck

bye