Please explain without using tables or a calculator evaluate

Evnu asked Dec 10, 2023

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43 votes

Please explain
without using tables or a calculator evaluate

Evnu asked Dec 10, 2023

by Evnu

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10 votes

Answer:

49.2

Explanation:

7.46² - 2.54² = (7.46 - 2.54)(7.46 + 2.54)

= (4.92)(10)

= 49.2

(1 x 4) x 3 = [1² + √(1 x 4)] x 3 = [1 + √4] x 3 = [1 + 2] x 3 = 3 x 3 = 9

Patrick Lynch answered Dec 15, 2023

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