Math, asked by vibhapathare, 5 months ago

using identity, evaluate 8.9²

Answers

Answered by dvarsha577

11

Answer:

79.21

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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