12x + 16 x 2 because you get the same answer in the end
tis always a good idea when factoring to start off with a quick prime factoring.

Step-by-step explanation:
f(x) = x² + 1, where x >= 0.
Let y be f(x).
=> y = x² + 1
=> x² = y - 1
=> x = √(y - 1) because x is non-negative.
Hence f^-1(x) = √(x - 1), where x >= 1.
Answer:
there isnt enough info
Step-by-step explanation: