Question

q^3-4q/q^2-4

Answer 1

= q(q^2 - 4) / q^2 - 4
= q

Answer 2

\[\frac{q{(q+2)}(q-2)}{(q+2)(q-2)}\]

Answer 3

it says the numbers for which the rational expression is undefined are ...

Answer 4

\[\frac{q{\cancel{(q+2)}}\cancel{(q-2)}}{\cancel{(q+2)}\cancel{(q-2)}}=q\]

Answer 5

LOL.

Answer 6

It's:

2, -2

Answer 7

Coz

2^2 = 4

(-2)^2 = 4

So,
4-4=0

when anything is divided by ZERO, then answer is UNDEFINED.