Question

evaluate using suitable identity 1004×1005​

Answer 1

Answer:

1009020

Step-by-step explanation:

1004×1005​

can be written as (1000+4)*(1000+5)

identity used : (x+a)(x+b) = x²+(a+b)x+ab

     here, x = 1000; a=4 ; b = 5

so, 1004×1005​ = (1000+4)*(1000+5)

                        = 1000²+(4+5)1000+(4)(5)

                        = 1000000+9000+20

                        = 1009020

Answer 2

Answer:

Step-by-step explanation:

lol :;?