need help starting this problem

[mary-ann]

ok the problem is

(a) Write down an expression of the form

n+ __k__ + __cx+d__
ax+b px^2+qx+r where px^2+qx+r may not be factorised

(b) add up the terms of the previous part the question to obtain a single fraction.

i just don't know where to start

 

[mary-ann]

i'll write it out again

 

[mary-ann]

___K___+__K^2___+n
ax+b.....px^2+qx+r

where px^2+qx+r may not be factorised