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puteri [66]
3 years ago
13

Expanding each integer in the expression 21x12, the result is [(2x10^1)+(1x10^0)]x[(1x10^1)+(2x10^0)]. 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
Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

Answer:

(2x+1)(1x+2) = 2x^2 + 4x + x + 2 = 2x^2 + 5x + 2

i think

Step-by-step explanation:

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