Answer :

(i)

This can be written as:


(100 + 2)2


= (100)2 + 2 (100) (2) + 22


= 10000 + 400 + 4


= 10404


(ii)


This can be written as:


(100 – 1)2


= (100)2 – 2 (100) (1) + 12


= 10000 – 200 + 1


= 9801


(iii)


This can be written as:


(1000 + 1)2


= (1000)2 + 2 (1000) (1) + 12


= 1000000 + 2000 + 1


= 1002001


(iv)


This can be written as:


(1000 – 1)2


= (1000)2 – 2 (1000) (1) + 12


= 1000000 – 2000 + 1


= 998001


(v)


This can be written as:


(700 + 3)2


= (700)2 + 2 (700) (3) + 32


= 490000 + 4200 + 9


= 494209


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