Question

f(x) = x^2 -2x +3
find f(-x)

Answer 1

\(f(-x)=(-x)^2-2\times(-x)+3=x^2+2x+3\)

Answer 2

so i just multiply the -x with all those who contain an x? since youve excluded the 3

Answer 3

DO NOT MULTIPLY .JUST REPLACE X WITH -X

Answer 4

replace the xs with a -x, except for three...
lol i feel stupid.. :p

Answer 5

wait.. why did i just replace the second x and not the first?

Answer 6

OH becuase its squared,..

Answer 7

yes because \((-x)^2=(-x)(-x)=x^2\)

Answer 8

oh yeahhhh..
wow, i feel stupid again :o

Answer 9

i think i get it, i'l go marinate this thing for a few more mins.
thanks a bunch both of yall! :p