Question

least common denominator
a^5 / a^2+4a+4 -6 / a^2-3a-10

Answer 1

@mathstudent55

Answer 2

\[\frac{ a ^{5} }{ a ^{2}+4a+4}\frac{ -6 }{ a ^{2} -3a-10}\]

Answer 3

Do you know what the first step would be to find the LCD

Answer 4

factor

Answer 5

Correct so did you factor yet?

Answer 6

i tried i got (a-2)(a+2) (a-2)(a+5)

Answer 7

You need to learn how to factor.

Answer 8

Very good, the only thing is that is you factored the second one wrong

Answer 9

It should be (a+2)(a-5)

Answer 10

okay im not sure how to do the second one

Answer 11

Both were factored incorrectly.

Answer 12

i know the first one will be (a+2)

Answer 13

im confused

Answer 14

The first one is (a + 2)^2, not (a + 2)(a - 2)

Answer 15

@mathstudent55 Is right the first one should be (a+2)(a+2) as well

Answer 16

oh okay

Answer 17

It seems like you need to review factoring

Answer 18

The second one is (a + 2)(a - 5)

Answer 19

my teacher was barely there to teach and it made it alot harder moving schools

Answer 20

Do you understand how we got that? and yes @mathstudent55 that what I said

Answer 21

yes i get how you factor it but sometimes i get confused on the whole factoring thing and after

Answer 22

@amybrooke
I have to get off soon, but I'll be glad to review with you how to factor polynomials at some other time.

Answer 23

okay thanks

Answer 24

Now that both denominators are factored, pick out the factors for the LCD the way I explained in the previous problem.

Answer 25

Take the common factors to both polynomials, and pick the one with the higher exponent.
Then pick the non-common factor too.

Answer 26

Sorry, I really gtg.

Answer 27

okay so itll be (a+2)^2 (a-5)

Answer 28

One day I'll post a guide to factoring, and I'll tag you.
You can use it as a study guide for factoring.

Answer 29

Correct.

Answer 30

okay thank you

Answer 31

wlcm