Simplify the following rational expression.
z^2-16z+64/z^2-64

Which values of Z make the expression undefined? Choose all that apply.

z=6
z=-8
z=-4
z=8

z=-8 and z=8

Step-by-step explanation:

A rational expression  is undefined when its denominator is equal to zero, so our expression is undefined when . Solving for z, we get

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

yess

step-by-step explanation:

idk whyy this is happening, i cant even read my notification bc i keep getting errors

~coco