Question

If f(x) = 4x – 1 and g(x) = x2 + 2x + 2, what is f(g(x))? can some explain.

x2 + 8x – 2

x2 + 6x + 1

4x2 + 6x – 1

4x2 + 8x + 7

Answer 1

You are just plugging an equation to another one

Answer 2

f(x) = 4x – 1
f(g(x)) = 4(x^2 + 2x + 2) – 1

Answer 3

simplify accordingly

Answer 4

put g(x) for x

Answer 5

so do I just multiply?

Answer 6

4(x^2 + 2x + 2) – 1
you simplify this

Answer 7

so it would be 4x^2+8+8?

Answer 8

dont forget about the – 1

Answer 9

3

Answer 10

I don't get it?

Answer 11

4x^2+8+8-1

Answer 12

that's the answer?

Answer 13

can u help me.?

Answer 14

that's the answer

Answer 15

but that's not any of my choices?

Answer 16

...

Answer 17

4(x^2 + 2x + 2) – 1
simplify that

Answer 18

I get the same anwer as I did before?

Answer 19

4x^2 + 8x + 8 – 1

Answer 20

what is 8 -1?