using special product calculate each of the following 993 X 996
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993 x 996
= (1000 - 7)*(1000 - 4)
= 1000*(1000 - 4) - 7*(1000 - 4)
= 1000*1000 - 1000*4 - 7*1000 + 7*4
= 1000000 - 4000 - 7000 + 28
= 1000000 - 11000 + 28
= 989000 + 28
= 989028 ——> Answer
= (1000 - 7)*(1000 - 4)
= 1000*(1000 - 4) - 7*(1000 - 4)
= 1000*1000 - 1000*4 - 7*1000 + 7*4
= 1000000 - 4000 - 7000 + 28
= 1000000 - 11000 + 28
= 989000 + 28
= 989028 ——> Answer
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