Question

Question 4(iii)
Divide as directed
$52pqr(p+q)(q+r)(r+p)÷104pq(q+r)(r+p)$

Answer 1

$52pqr(p+q)(q+r)(r+p)÷104pq(q+r)(r+p)=\frac{2\times 2\times 13\times p\times q\times r\times (p+q)\times (q+r)\times (r+p)}{2\times 2\times 2\times 13\times p\times q\times (q+r)\times (r+p)}=\frac{1}{2}r(p+q)$