Answer:
B or Number 2.
The expression 25−−√−21−−√ can be rewritten as 5−21−−√. Since the exact value of 21−−√ cannot be found, the difference is irrational.
B or Number 2.
The product of two irrational numbers is ___ (Sometimes) an irrational number.
Step-by-step explanation:
The product of two irrational numbers i never an irrational number
