math test pls help me

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kittykathy21 kittykathy21

15-06-2021
Mathematics

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math test pls help me

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Hrishii Hrishii · Answer 1 · 2021-06-15T19:55:13+02:00

Hrishii Hrishii

15-06-2021

Answer:

D. [tex] \frac{45}{x^{10}}[/tex]

Step-by-step explanation:

[tex](3 {x}^{ - 4} )^{2} (5 {x}^{ - 2} ) \\ \\ = (9 {x}^{ - 8} )(5 {x}^{ - 2} ) \\ \\ = 9 \times 5 \times {x}^{ - 8 - 2} \\ \\ = 45 {x}^{ - 10} \\ \\ = \frac{45}{ {x}^{10} } [/tex]

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