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

factor out what you can on both the top and bottom

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

try to factore the bottom trinomial

from the 16 you have missed a z ,yes ?

Hmm that might make more sense :P

in numerator

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

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

the formula of discriminant ?

not nessecary...

use decomposition factoring on top

so than do it without

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

Do you have an idea about the factoring on top?

ill give you a hand

do u still need help?

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

ok jsut give a few minutes

4z^2+16+15/2z^2-z-16 just as Bitmaximus had stated earlier factor both expressions then it will be simplified

factor 4z^2 + 16 z + 15 (2z+3)(2z +5) then factor the bottom trinomial 2z^2 - z - 16

do u see what i am doing?

Yeah I'm following so far

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

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

u mean for the final answer

yes my simplified answer

ok let me check first

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

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

are u still with me?

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

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

Well your answer makes sense.. Thank you:)

ur welcome

Join our real-time social learning platform and learn together with your friends!