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salantis [7]
3 years ago
14

Reina and Sam are multiplying (84)5 (73)9.

Mathematics
1 answer:
Ann [662]3 years ago
4 0
<span>This is a tricky question that Reina and Sam are multiplying (84)5 (73)9
and their work are 
</span><span>(84)5 (73)9 = 84 + 573 + 9 = 89712    Reina's
(84)5 (73)9 = 84⋅573⋅9 = 820727 Sam's
Actually they are doing or multiplying using exponents.

</span>

Reina’s work (8⁴)₅(7³)⁹=8⁴⁺⁵+ 7³⁺⁹= 8⁹ 7¹²<span>
This is incorrect  because she added exponents instead of multiplying exponents

Sams work (8</span>⁴<span>)</span>⁵<span> (7</span>³<span>)</span>⁹<span>=8</span>⁴ˣ⁵<span> 7</span>³ˣ⁹<span>= 8</span>²⁰<span> 7</span>²⁷<span>
<span>This is correct  because Sam multiplied exponents correctly</span></span>

<span><span>Exponents are multiplied not added.</span></span>

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At this point, go through the attached file before you continue with part B.

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that's what I got

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