Question

How do you find `k(a-2)` given `k(a)=-4^(3a+2)`?

Answer 1

`k(a-2)=-4^(3a-4)`

Explanation:

To evaluate k(a - 2) , substitute a = a - 2 into k(a)

`k(color(red)(a-2))=-4^(3(color(red)(a-2))+2`

now `3(a-2)+2=3a-6+2=3a-4`

`rArrk(a-2)=-4^(3a-4)`