Answer:

Step-by-step explanation:
You can see the attached picture
Answer:
steps below
Step-by-step explanation:
2ⁿ⁺¹ +2ⁿ⁻¹ = 2ⁿ⁻¹ (2² + 1) = 5*2ⁿ⁻¹
We need a pic to see what is the shape lol
Answer:
-7
Step-by-step explanation:
-7 + 5 = -2
Can u mark me brainly pleasee???