# A Level H2 Maths 2012 Paper 2 Q3 Solution

(i)

(The graph above is drawn using the Geogebra software 🙂 )

(ii)

By GC,

By long division,

The discriminant of is

Hence, there are no other real solutions (proven).

(iii)

(iv)

(v)

or

or

(from part ii)

In summary, the roots are