Question

if f(x)=x^2-2x+4, find f(-3x)

Answer 1

Just plug in -3x in place of x :)

Answer 2

@AutumnMaybury Start working :)

Answer 3

answer is one?

Answer 4

@AutumnMaybury What ?

Answer 5

i got one for the answer

Answer 6

Please show me your working @AutumnMaybury

Answer 7

f(x)=-3^2-2(-3)+4

Answer 8

Its not -3,It's -3x

Answer 9

See the question you provided us

Answer 10

but you said put -3 in for x..... *confused*

Answer 11

I said put '-3x' in place of x

Answer 12

ok sorry rewriting now

Answer 13

Ok :)

Answer 14

3x+4

Answer 15

@AutumnMaybury

I want you to show me your working please :)

Answer 16

Well lemme show you something


\[\huge\ (-3x)^2=(-3)^2(x)^2=9x^2\]

Answer 17

is that the answer?? please explain *confused* :(

Answer 18

It would be x^2 not x

Answer 19

I mean to say the first one my bad.

Answer 20

f(x)=9x^2-6x+4

Answer 21

but 9x-6x does equal 3x-4

Answer 22

It would be 9x^2 not 9x.

Answer 23

is the 9 the only one squareD? the 6x isnt?

Answer 24

No.

Answer 25

The 6x is not.

Answer 26

I have showed you above in latex.

Answer 27

ok thank you