Question

Given the function f(k)= 6k4 + 2k³ - 6, find the value of f(-4)

Answer 1

First I’m not sure if it was supposed to be 6k4 or 6k^4 but I did it 6k^4
In order to solve for f(-4) we know what the value is for K

So in the formula f(k)=6k^4 +2k^3 -6 we would replace K with (-4)

f(-4)= 6(-4)^4+2(-4)^3-6

Then start solving the exponents first
(-4)^4=256
(-4)^3=-64

f(-4)= 6(256)+2(-64)-6
= 1536-128-6
=1408-6
f(-4)= 1402

Answer 2

Answer: 1402

Explanation:

Im assuming u mean
`6k^(4) +2k^(3) -6`

sub in the k value when k = -4

`6(-4)^(4) +2(-4)^(3) -6`

1536−128−6=1402