(a)[1]
Fully factorise $8x^2y-12x^5$.
(b)[2]
Solve for $x$: $4x-2(x+5)=3$.
(c)[2]
Solve the inequality $7-5y<20$.
(d(i))[2]
Show that the equation obtained is $2x^2-9x+5=0$.
(d(ii))[3]
Solve $2x^2-9x+5=0$ and give your answers correct to 2 decimal places.
(d(iii))[1]
Calculate the difference between the rectangle's length and width.