Math, asked by hrutujachaudhari, 1 month ago

(7-2)^2 =
$(a - b) ^2 = a ^2 - 2ab - b ^2$

Answers

Answered by karunam2020

3

Answer:

answer is in the attachment

Attachments:

Answered by Anonymous

44

(a - b)² = a² + b² - 2ab

(7 - 2)² = 7² + 2² - 2 × 7 × 2

= 49 + 4 - 28

= 53 - 28

= 25

We can do it directly also

(7 - 2)² = (5)² = 25

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