Evaluate:
10
Σ¹04(-2)n-¹ = [? ]
please I need help :(

Answer: -1364
Step-by-step explanation:
This is a geometric series with first term 4 and a common ratio of -2.
Using the sum of a geometric series formula, we get this sum to be equal to:
[tex]\frac{4(1-(-2)^{10}}{1-(-2)}=\boxed{-1364}[/tex]