g) \( (\pi+x)^{3}-3 \pi(\pi+x)+2 \pi^{3}-x^{3} \)

d the exact value of the solution to the equation \( 2 e^{2 x}-7 e^{x}-4=0 \)

2.3 Express \( \frac{1}{\sqrt{2}+1} \) in its simpl

2imalify \( \frac{x^{2}-y^{2}}{x^{2} x y} \) \( \frac{y+2 x-3 y}{3 x-2 y}=4 \), evaluate \( 2 x y \) If \( z=\sqrt{x^{2}-y^{2}} \), express \( x \) interm 9 \( y \) and 2

Question 8 ( 3 marks) What is the equation of the line that passes through the points \( (1,6) \) and \( (3,2) \) ? \( y=\square x+\square \)

\( \left\{ \begin{array} { l } { 2 x y - y = 7 } \\ { x - 5 y - 2 } \end{array} \right. \)