Question

What is the value of the rational expression x^2-2x-3/4x^2-12 when x = 3?

a) -1/4
b) 0
c) 1/4
d) Undefined

Answer 1

b

Explanation:

the answer is b:0

Answer 2

b

Explanation:

Given

`(x^2-2x-3)/(4x^2-12)`

Substitute x = 3 into the expression

=
`(3^2-2(3)-3)/(4(3)^2-12)`

=
`(9-6-3)/(36-12)`

=
`(0)/(24)` = 0 → b