Answer:

x² + 1

if x=2 then,

(2)² + 1 = 4 + 1

Step-by-step explanation:

hope it helps^^

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zero), replace f(x) with 0 and solve for x.

x=i√2,−i√2

Hope it helps!

Have a nice day!