find the square of the following no using the identity (a-b)=a^2-2ab+b^2of number(998)^2
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Answer:do it yourself
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(a-b)²=a²-2ab+b²
therefore 998 can be written as 1000-2
(1000-2)=1000²-2*1000*2+2²
=1000000-4000+4
=996000+4
=996004
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