Reina and Sam are multiplying (84)5 (73)9. Reina's Work Sam's Work (84)5 (73)9 = 84 + 573 + 9 = 89712 (84)5 (73)9 = 84⋅573⋅9 = 820727 Is either of them correct? Explain your reasoning.

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asked Feb 3, 2018 78.1k views

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Reina and Sam are multiplying (84)5 (73)9. Reina's Work Sam's Work (84)5 (73)9 = 84 + 573 + 9 = 89712 (84)5 (73)9 = 84⋅573⋅9 = 820727 Is either of them correct? Explain your reasoning.

Mathematics
middle-school

Danivovich asked

by Danivovich

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No because brackets represent multiplication, so (84)5(73)9 is actually 84.5.73.9

Rupesh Kumar Tiwari answered Feb 6, 2018

by Rupesh Kumar Tiwari

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it should be 84 x 5 x 73 x 9

which = 275940

Cnherald answered Feb 8, 2018

by Cnherald

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