Use the functions to answer the question.
f(x) = 4x -1 ; g(x) = 5x^2
Which is equal to (f times G) (x)
(Points : 4)
Option A: 80x^2 - 40x +5

Option B: 20x^3 -5x^2

Option C: 5x^2 + 4x -1

Option D: 20x^2 -1

Question

Use the functions to answer the question.
f(x) = 4x -1 ; g(x) = 5x^2
Which is equal to (f times G) (x)
(Points : 4)
       Option A: 80x^2 - 40x +5

       Option B: 20x^3 -5x^2

       Option C: 5x^2 + 4x -1

       Option D: 20x^2 -1

anonymous · Answer

f(g(x)) would look like this.

4(5x^2)-1. You solve for x.

anonymous · Answer

How do I solve for x?

anonymous · Answer

20x^2-1. You don't solve for x. My mistake.

the answer would be 20x^2-1

anonymous · Answer

thank you

anonymous · Answer

f(x) =x^2 -4 ; g(x) = x+ 2
which is equal to (f + g) (x)
x^2 -2
x^2 + 4x
x^2 + x -2
x^3 + 2x^2 -4x -8