Question

Using identities,evaluate1. 71^2​

Answer 1

Answer:

5041.

Step-by-step explanation:

71 = 70 + 1

(70 + 1)² (a² + 2ab + b²)

70² + 2(70)(1) + 1²

4900 + 140 + 1

5041.

So 71² = 5041.

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