Question

expand=(97)2 by using formula
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Answer 1

$(100-3)^2 \\\\=(100)^2 + (3)^2 -2*100*3\\\\= 10000 + 9 - 600\\\\ = 10009-600\\\\ = 9409$

verification:

$(97)^2\\\\= 97*97\\\\=9409$

hence, answer is correct

hope it helps u