Question

simplify z^2-4/2z^2+5z+2 x 2z^2+z/z-2

Answer 1

It's this, correct?
\[\LARGE \frac{z^2-4}{2z^2+5z+2}*\frac{2x^2+z}{z-2}\]

Answer 2

yes

Answer 3

no 2z^2+z on the right

Answer 4

Oh, sorry.
But start off by factoring.

Answer 5

these are my options 1. 2z^2/5z 2. 2z^2+z/2z+1 3. z 4. 1/z 5. none

Answer 6

i dont need to show work on them

Answer 7

Still, it's a good thing to do so.. it helps when they get lengthy and complicated..

Answer 8

aww man im kind of in a rush lol

Answer 9

Well okay.. first write it out:
\[\LARGE \frac{z^2-4}{2z^2+5z+2}*\frac{2z^2+z}{z-2}\]

Now factor:
\[\LARGE\frac{(z-2)(z+2)}{(2z+1)(z+2)}*\frac{2(z+1)}{z-2}\]
Now just cross cancel and simplify.. pretty simple

Answer 10

On the top right, that should be z(2z+1) not 2(z+1)

Answer 11

thanks man

Answer 12

Anytime!