Question

without multiplying 83×77 use appropriate identity​

Answer 1

Answer:

The answer is 6391

Step-by-step explanation:

Hope it helps you

Answer 2

Answe

6391

Step-by-step explanation:

here identity 3rd is used

a^2 - b^2 = (a+b)(a-b)

83 = 80+3

77= 80-3

so the answer is

(80-3)(80+3)

= 80^2-3^2

6400-9

6391