Question

Subtract the square of 61 from the square of 62 without actually calculating the squares. ​

Answer 1

Answer:

Given,

We need to Subtract the square of 61 from the square of 62 without actually calculating the squares.

Using the formula

${x}^{2} - {y}^{2} = (x + y)(x - y)$

We get...

$= > {(62)}^{2} - {(61)}^{2} \\ = > (62 + 61)(62 - 61) \\ = > 123 \times 1 \\ = > 123.$

Answer 2

$\huge\sf{Answer:-}$

Given

Subtract the square of 61 from the square of 62 without actually calculating the squares.

Using Formula

= ( x + y ) ( x - y ) x 2 − y 2

= ( x + y ) ( x − y )

Hence

= 62 * 2 − 61 *2

= ( 62 + 61 ) ( 62 − 61 )

= ( 123 × 1 )

Therefore answer = 123