## anonymous 3 years ago What is the simplified form of 4z^2 - 4x - 15/ 2z^2 + z - 15

1. anonymous

a) 2 + 3/z+3 b) 2z - 3/z+3 c) 2z+3/z-3 d) 2z-3/z-3

2. jim_thompson5910

What do you get when you factor the numerator and denominator?

3. anonymous

is that writen like $\frac{ 4z ^{2}-4x-15 }{ 2z ^{2}+z-15 }$

4. anonymous

yes

5. anonymous

except at the top its -4z not x

6. anonymous

I'm sorry, that was my fault

7. anonymous

Do you know ho to do the cross-cancelation method?

8. anonymous

no

9. anonymous

never mind, i wrote down the rong method, my bad. i ment do you know how to factor trinomials

10. anonymous

i think in answer a you left out a z

11. anonymous

a) (2z + 3)/(z+3) is that what you mean?