Math, asked by adityasainityyy68, 7 months ago

Simplify (12.9)² – (7.1)²

Answers

Answered by aishwaryasinha695

6

Answer:

using

$a ^{2} - {b}^{2} = (a + b)(a - b)$

(12.9 +7.1)(12.9-7.1)

=20× 5.8

= 116

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