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(197)^2-(97)^2 evaluate without using calculator or table ​
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(197)^2-(97)^2 evaluate without using calculator or table
​

User JaYwzx Wong
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1 Answer

3 votes

Answer:

29400

Explanation:


formula: \\ {a}^(2) - {b}^(2) = (a + b)(a - b) \\ ( {197)}^(2) - ( {97)}^(2) \\ = (197 + 97)(197 - 97) \\ = 294 * 100 \\ = 29400 \\

User Kristofor
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