(a(i))[1]
$7^5\times7^6$
(a(ii))[1]
$7^{15}\div7^5$
(a(iii))[1]
$4^2+7$
(b)[3]
Simplify $(5x^2\times2xy^4)^3$.
(c(i))[2]
Find the highest common factor (HCF) shared by $P$ and $Q$.
(c(ii))[2]
Find the lowest common multiple (LCM) shared by $P$ and $Q$.
(c(iii))[2]
Given that $P\times R$ is a cube number, with $R$ an integer, Find the smallest possible value of $R$.
(d(i))[2]
$x^2-3x-28$
(d(ii))[2]
$7(a+2b)^2+4a(a+2b)$
(e)[4]
Given $3^{2x-1} = \frac{1}{9^x} \times 3^{2y-x}$, Find an expression for $y$ in terms of $x$.