Question

Find all numbers for which the rational espression is undefined. q^3 - 7q/ q^2-4

Answer 1

all real numbers except for 2 and -2

Answer 2

Q = ?

Answer 3

q = 2 or q = -2 gives zero denominator - sorry - i misread the question.
expression is undefined for these 2 values of q

Answer 4

q^30 7q/q^2 - 4

Answer 5

Oh crap...q^3 - 7q / q^2 -4

Answer 6

i've assumed this is
q^3 - 7q
--------
q^2 -4

is this right?

Answer 7

Yes

Answer 8

ok - well thats the answer :- q = 2,-2 gives an undefined value for the expression
because (2)^2 - 4 = 0 and (-2)^2 - 4 = 0
and something / 0 is undefined

Answer 9

That was a good answer. Just has a baby night (nephew) so my mind is not right.

Answer 10

good rhyming there :)