Question

Finding the squares of the following by using the rules of special products.

a) 81
ans:-6561.
process:-???​

Answer 1

Explanation:

To find the square of 81, we can use the property of special products:

(a + b)² = a² + 2ab + b²

In this case, a is 80, and b is 1. Now, let's apply the formula:

81² = (80 + 1)²

81² = 80² + 2 * 80 * 1 + 1²

81² = 6400 + 160 + 1

81² = 6561

So, the correct square of 81 is 6561, and the process involves using the special product formula (a + b)².