Question

Given: F(x) = 2x - 1; G(x) = 3x + 2; H(x) = x 2

Find F[G(x)] - F(x).

4x + 4
4x
4x + 2

Answer 1

Answer: A

Explanation:

`F(x)=2x-1\\G(x)=3x+2\\\\F(G(x))-F(x)=F(3x+2)-(2x-1)\\\\=2*(3x+2)-1-2x+1\\\\=6x+4-2x\\\\=4x+4\\\\\\Answer\ A`

Answer 2

Explanation:

F[G(x)]=2(3x+2)-1= 6x+4-1= 6x +3

F[x]=2x-1

F[G(x)] - F(x)=6x+3-(2x-1)=6x+3-2x-1

=4x+2

answer=4x+2