Final answer:
The expression (x+1)²³ can be written in radical form as (x+1)¹¹.
Step-by-step explanation:
To write the expression (x+1)²³ in radical form, we can rewrite it as ((x+1)²)¹¹. Now, we can take the square root of the base and divide the exponent by 2 to get (x+1)¹¹.
Learn more about Writing expressions in radical form