Pls help me and show the answer clearly and pls make sure it is right since I checked a few others and it said it was wrong and also pls do it quick since my homework is do in tomorrow! Thank you! :)

Answer:
x² + 6
Step-by-step explanation:
think of a number: x
multiply it by itself: x × x = x²
add 6 to the result: x² + 6