Question

If
`f(x) = -4x^(5) and g(x) = 10x^9 - 12x^4 + 6` (what is f x g) x?

A.)
`-40x^(14) + 48a^(3) x^(9) +6`

B.)
`40x^(14) - 12x^(4) + 6`

C.)
`-40x^(14) + 48x^(9) - 24x^(5)`

D.)
`-40x^(9) + 48x^(4) - 24`

Answer 1

C

Explanation:

(f×g)x just means

f(x) × g(x)

Multiply the two given functions together. Use distributive property. To multiply terms with the same base, add the exponents.

see image.