1) 991×1009
2) 104×96
solve in formula plzz urgent
plzzzzz
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1)(1000-9)(1000+9)
=1000^2-9^2
=1000000-81
=999919
2)(100+4)(100-4)
=100^2-4^2
=10000-16
=9984
=1000^2-9^2
=1000000-81
=999919
2)(100+4)(100-4)
=100^2-4^2
=10000-16
=9984
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