HKDSE-MATH - 2022 - Paper 2 -

Ans: B

$\begin{array}{cl}
& \dfrac{81^{2n+3}}{(27

Ans: $x^{34}y^{55}$

$\begin{array}{cl}
& \dfrac{x

Ans: A

$\begin{array}{cl}
& 4^{n+2}3^{2n+4} \\
= �