Neither all can be substrates
The answer is 9+10 your answer should be solved
Step-by-step explanation:
Here it is given -n ^0 + n ^2 - 9n - 9
Here the fifth term is
t5 = -5^0 + 5^ 2 - 9*5 - 9
= -1 + 25- 45-9
= - 30
I got the other answer which is not in your options..
D. choices b, c, d only is the right choice. hope it will help you!
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