Question

whats is the simplified form of 4z^2+16+15/2z^2-z-16

Answer 1

factor out what you can on both the top and bottom

Answer 2

Which in this case is not much,....

Answer 3

try to factore the bottom trinomial

Answer 4

from the 16 you have missed a z ,yes ?

Answer 5

Hmm that might make more sense :P

Answer 6

in numerator

Answer 7

Oh I missed that. yes there is a z after 16

Answer 8

ok than do you know how you solve a quadratic equation ?

Answer 9

the formula of discriminant ?

Answer 10

not nessecary...

Answer 11

use decomposition factoring on top

Answer 12

so than do it without

Answer 13

Okay thank you.:)
I'm just not very good at factoring so I wasn't sure how.

Answer 14

Do you have an idea about the factoring on top?

Answer 15

ill give you a hand

Answer 16

do u still need help?

Answer 17

Yes, I thought I got it but I didn't... so yes please

Answer 18

ok jsut give a few minutes

Answer 19

4z^2+16+15/2z^2-z-16

just as Bitmaximus had stated earlier factor both expressions then it will be simplified

Answer 20

factor 4z^2 + 16 z + 15

(2z+3)(2z +5)

then factor the bottom trinomial

2z^2 - z - 16

Answer 21

do u see what i am doing?

Answer 22

Yeah I'm following so far

Answer 23

so try and factor 2z^2 - z - 16

Answer 24

wouldn't my answer be 2z+3 over z-3

Answer 25

u mean for the final answer

Answer 26

yes my simplified answer

Answer 27

ok let me check first

Answer 28

the simpllified form is (2z+3) ( 2z+5) / 2z^2-z-16

Answer 29

even though it is not the same as ur answer, but the problem is that u can not factor the bottom trinomial

Answer 30

are u still with me?

Answer 31

Yeah I tried to factor the bottom it doesn't make that much sense

Answer 32

that is why i think that ^^ is the simplified form

Answer 33

Well your answer makes sense.. Thank you:)

Answer 34

ur welcome