Question

I'm a bit confused on how to do this​

Answer 1

-434

Explanation:

If f(a) = 4 then,

f(4) = 4⁴ - 3(4)³ - 8(4)³ + 19(4) - 22

4⁴ - 3(4)³ - 8(4)³ + 19(4) - 22

256 - 3(64) - 8(64) + 19(4) - 22

256 - 192 - 512 + 76 - 22

64 - 512 + 76 - 22

-488 + 76 - 22

-412 - 22

= -434