Let A = x^4 + x^3 + x^2 + x + 1 and B = x^4 - x^3 + x^2 - x + 1. Simplify A + B.
(x^4 + x^3 + x^2 + x + 1) + (x^4 - x^3 + x^2 - x + 1)
\(2x^4 + 2x^2 + 1\)
+766 
+49 
