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  3. (ii) evaluate (998)^2 – (2)^2​
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(ii) evaluate (998)^2 – (2)^2​

Answers (1)
S Suraj Bhandari

(998)2 – (2)2​

= ( 998 + 2 ) ( 998 - 2 )              using formula a2-b2=( a+b )( a - b )

= 1000 x 996

= 999000

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