How do you multiply two natural numbers? Use same concept.

Use the formula (a+b)(c+d)=ac+cd+bc+bd

What is the basic concept of rationalization?

What is the definition of rational and irrational numbers?

What happens when we multply a given rational number with itself

Just use the formula (a+b)(a-b)

How do you add two natural numbers? Use same concept.

Use the formula (a+b)^2= a^2+b^2+2ab

What is the basic concept of rationalization?