Final answer:
The two numbers that have a decimal form that neither terminates nor repeats are called irrational numbers.
Step-by-step explanation:
The two numbers that have a decimal form that neither terminates nor repeats are called irrational numbers. The most famous irrational numbers are π (approximately 3.14159...) and √2 (approximately 1.41421...). These numbers cannot be expressed as a fraction and their decimal representation goes on forever without repeating.