Question

let f(x) = x^2-3 and g(x)=3x+1. Find (fog)(x)

Answer 1

(fog)(x) = f(g(x)

Answer 2

ie = f (3x+1)

Answer 3

= (3x+1)^2 - 3

Answer 4

Solve this..)

Answer 5

\[(a+b)^2 = a^2 + 2ab + b^2\]

Answer 6

does this then equal 9x^2 -2?

Answer 7

u missed to use 2ab

Answer 8

9x^2+6x-2

Answer 9

Is this the correct answer then 9x^2+6x-2?

Answer 10

f(x) = x^2-3 and g(x)=3x+1
f(g(x)) = (3x+1)^2 - 3
= 9x^2 + 6x + 1 - 3
= 9x^2 + 6x - 2

yes.