Answer:
[tex]\implies f(x) = 2x^2-12x + 22 [/tex]
Step-by-step explanation:
Given :-
And we need to find out the function from the given options which is equivalent to the given function . For that firstly simplify the whole square term , that is ,
Using Identity :-
[tex]\implies (a-b)^2= a^2-2ab + b^2[/tex]
Whole square term :-
[tex]\implies (x-3)^2= x^2+9-6x [/tex]
Now multiply the constant term outside the bracket to it . As ,
[tex]\implies f(x) = (2x^2+18-12x )+ 4 [/tex]
Add the constant terms .
[tex]\implies f(x) = 2x^2-12x + 22 [/tex]
Hence the second option is correct .