Hello, thank you for taking the time to post your question!
To solve this one you want to plug in x = -1 back into the p(x) expression
2(-1)^2 – 2(-1) + 4
= 2(1) + 2 + 4
= 2 + 2 + 4
= 8
I hope that helps you get moving in a better direction on this type of question! Feel free to reach out if you have any additional questions beyond that :)