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mafiozo [28]
3 years ago
12

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

Mathematics
1 answer:
Bezzdna [24]3 years ago
3 0

Answer:

29400

Step-by-step explanation:

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

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