Question

http://media01.switchedononline.com/g_alg01_2011/10/272.gif

Answer 1

factor

Answer 2

the top and bottom

Answer 3

I did but i dont get how to factor the -7n

Answer 4

Australopithecus, I just wanted to say I love your username. (Your profile pic is suiting.)

Answer 5

well you have

n^(2) -7n - 44

what time what gives 44 and adds or subtracts to 7

Answer 6

@Hpbby , you need to apply the fact that \((a+b)(a-b)=a^2-b^2\).

Answer 7

k

Answer 8

hpbby what times what multiplies to 44?

Answer 9

4 times11

Answer 10

ok so we have

(n 4)(n 11)

Answer 11

it is almost factored how can we make 4 and 11 make -7

Answer 12

-11n +4n

Answer 13

right so we have

(n + 4)(n - 11)

Answer 14

it is factored

Answer 15

now factor the bottom

Answer 16

the same way

Answer 17

only you want two numbers that subtract to 0

Answer 18

k

Answer 19

and multiply to -121

Answer 20

then it is as simple as canceling out terms

Answer 21

do you have this now?

Answer 22

Yes it should be n+4 over n+11

Answer 23

right

Answer 24

http://media01.switchedononline.com/g_alg01_2011/10/428.gif
One more question

Answer 25

flip the far right fraction and multiple them

Answer 26

when ever you see division of a fraction, flip the fraction that is being divided and multiply

Answer 27

k got that

Answer 28

you should be able to cancel out rs

Answer 29

k got that

Answer 30

then factor

Answer 31

using the same method as before

Answer 32

So it should

Answer 33

after dividing you should have