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wlad13 [49]
2 years ago
5

Math test pls help me

Mathematics
1 answer:
Natalija [7]2 years ago
3 0

Answer:

D. \frac{45}{x^{10}}

Step-by-step explanation:

(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} }

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