Mathematics, 15.07.2019 06:30, kingcory6230

Which expression is a difference of squares? 9m4−49n6 16h2−21t10 32a2−81n2 100x2−10y4

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Which expression is a difference of squares? 9m4−49n6 16h2−21t10 32a2−81n2 100x2−10y4...