Question

Without actually squaring, find the value of 652 – 642.​

Answer 1

Answer:

652-642=10 and 10 square is 1000

Answer 2

Step-by-step explanation:

Correct option isB =71

Using the formula, a? – b? = (a + b)(a -b)

We get, 362 – 352 (36 + 35) (36 – 35)

= 71 x 1

= 71.