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kotegsom [21]
3 years ago
12

Help please! Use the fact that (a+b)^2 = a^2 + 2ab + b^2 to find the value of 81^2. [Hint: (80 + 1)^2]

Mathematics
1 answer:
snow_lady [41]3 years ago
4 0
Answer is below..................

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Read 2 more answers
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