Question

please answer please mathematics questions in copy please​

Answer 1

Answer:

(81)^2 = (80+1)^2 = (80)^2 + (1)^2 + 2*80*1

6400+ 1 + 160

= 6561

Answer 2

Answer:

there are 2 methods for squaring I am answering through simpler one

Step-by-step explanation:

hope this helps you

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