Chapter 3 - Squares and Square Roots - R S Aggarwal Solutions for Class 8
Square: The square of a number is the product of the number with the number itself.
Ex: Square of x is (x * x) = x2
If x = 4 then square of 4 is (4*4) = 42 = 16
Perfect Squares: A natural number is called a perfect square if it is the square of some natural number.
Note: A perfect square is always expressible as the product of pairs of equal factors.