SOLUTION: Expanding each integer in the expression 21 × 12, the result is [(2 × 10^1) + (1 × 10^0)] × [(1 × 10^1) + (2 × 10^0)]. Replace the 10s with x’s and then multiply this expression us
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-> SOLUTION: Expanding each integer in the expression 21 × 12, the result is [(2 × 10^1) + (1 × 10^0)] × [(1 × 10^1) + (2 × 10^0)]. Replace the 10s with x’s and then multiply this expression us
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Question 1005901: Expanding each integer in the expression 21 × 12, the result is [(2 × 10^1) + (1 × 10^0)] × [(1 × 10^1) + (2 × 10^0)]. 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.
