Question

Simplify: 5c^-9 d^-2 e^3
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2c^-3 d^5 e^-10

Answer 1

have you learned about division rule of exponent? :)

Answer 2

subtract exponents?

Answer 3

add the exponts?

Answer 4

yes...,
\[\Large \frac{x^{a}}{x^b} = x^{a-b} \]
\[\Large x^{a} \times {x^b} = x^{a+b} \]

now.. can you use these in your question?