Question

Evaluate using suitable identity 1005×995

Answer 1

Answer:

Step-by-step explanation:

1005×995

=(1000+5)×(1000-5)

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

=1000^2-5^2

=1000000-25

=999975

Answer 2

Answer:

(1000+5)(1000-5)

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