Question

If f : R ⟶ R is defined by f(x) = x

2 + 2 , then the pre-images of 27 are
(1) 0 , 5 (2) 5 , -5 (3) 5 , 0 (4) √5 , - √5

Answer 1

yes, poem by a friend about the following is

Answer 2

Answer:

$2 + 2 = 4 \\ \\ 5.0 \\ \\ is \: the \: right \: answer$