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Mathematics, 08.10.2019 07:30 bluenblonderw

Expanding each integer in the expression 21 × 12, the result is [(2 × 101) + (1 × 100)] × [(1 × 101) + (2 × 100)]. replace the 10s with x’s and then multiply this expression using foil. compare it with the normal integer multiplication method used above: how are they similar? show your work

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Expanding each integer in the expression 21 × 12, the result is [(2 × 101) + (1 × 100)] × [(1 × 101)...
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