Question

Which of the following will equal to x^2-9/x+3 when x does NOT equal 3

Answer 1

1/x-3

x+3

x-3

x-3/x+3

Answer 2

numerator u factorise and get (x+3)(x-3), since x!=-3 u can cancel the commonfactor , x+3 and so u get
(x-3) as the answer.