Answer:

Step-by-step explanation:


x

1 x 5 = 5
16 x 4 = 64
is the answer
In simplest form the answer would be

because it cant be divided any farther.
Answer:
C
Step-by-step explanation:
sqrt x can be zero, but you can't sqrt a negative number. there is no further restrictions on sqrt x, there it goes to positive infinity.