Question

Reina's work (84)5 (73)9 = 84 + 573 + 9 = 8to the ninth power7to the twelfth power Sam's Work (84)5 (73)9 = 84⋅573⋅9 = 8to the 20th power 7 to the 27th power

Which one is right

explain.

Answer 1

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