1 Answer

Sakurako · Answer 1 · 2023-10-25T08:31:24+0000

Letter A

For negative exponents

Therefore, when the exponent is negative, the base is inverted and the sign of the exponent is changed.

Letter B

Here it is necessary to convert the numbers in the power of 3 and after applying exponent rules

$\begin{gathered} 27\cdot9^(3x)=3^k \\ 3^3\cdot(3^2)^(3x)=3^k \\ 3^3\cdot^{}3^(6x)=3^k \\ 3^((3+6x))=3^k \\ k=3+6x \end{gathered}$

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