Divide as directed.
(i)5(2x+1)(3x+5)÷(2x+1)
(ii)26xy(x+5)(y−4)÷13x(y−4)
(iii)52pqr(p+q)(q+r)(r+p)÷104pq(q+r)(r+p)
(iv)20(y+4)(y2+5y+3)÷5(y+4)
(v)x(x+1)(x+2)(x+3)÷x(x+1)
Simplify the following: (i) (1.5x−4y)(1.5x+4y+3) (ii) (x+y)(2x+y)+(x+2y)(x−y) (iii) (a2+5)(b3+3)+5 [3 MARKS]