Question

Find all numbers for which the rational expression is not defined

8/2x

Answer 1

real numbers i think

Answer 2

@wio

Answer 3

if the expression is

\[\Large \frac{8}{2x}\]

then you cannot divide by zero

This means the denominator 2x cannot be equal to zero. If it were, then

2x = 0

2x/2 = 0/2

x = 0

So if x = 0, then the denominator is zero. That means x = 0 makes the expression undefined.

Answer 4

oh i see thanks jim ! :3

Answer 5

you're welcome