Question

use identity to evaluate (97) square​

Answer 1

(97)

2

Using,

(a−b) 2

=a 2 −2ab+b 2

=(100−3) 2

=(100) 2 −2(100)(3)+(3) 2

=10000−600+9

=9,409

Answer 2

Step-by-step explanation:

(97)²

=(90+7)²=8100+1260+49=9409

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