Math, asked by vishu957, 1 year ago

use algebraic method to find the square of 309

Answers

Answered by andes1282

9

Answer:

Step-by-step explanation:

(309)^2 = (300 + 9)^2

= (90000 + 5400+ 81) (a+b)^2 = a^2 + 2ab + b^2

=95481.

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