Math, asked by shubhamdighole5035, 10 months ago

Using identity evaluate 8.9

Answers

Answered by Anonymous

4

Answer:

Step-by-step explanation:

(8.9)²

= ( 9 - 0.1)²

= (9)² - 2(9)(0.1) + (0.1)²

= 81 - 1.8 + 0.01

= 81 - 1.79

= 79.21

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