Question

Using identity (a – b)2
= a2
– 2ab + b2
find the value of 982

Answer 1

Answer:

Step-by-step explanation:

982 = ( 1000 - 18² )

= ( 1000 )² - 2 × ( 1000 ) × ( 2 ) + ( 2 )²

= 1000000 - 4000 + 4

= 1000004 - 4000

= 96004 is the answer.