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21-09-2020
Mathematics

contestada

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

Respuesta :

Hrishii Hrishii

21-09-2020

Answer:

29400

Step-by-step explanation:

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

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