What the hell, i have all the questions here but i wont risk getting sued because they have not released the questions yet so i will post some.
2(a) (i) Simplify n^2 -(n+a)(n-a).
(ii) Hence evaluate 326541829^2 -326541833 x 326541825.
(b)Solve the simultaneous equations
2x=y+6,
6x-2y=13.
(c)It is given that y= t^2 -2.
(i)Find y when t=-3.
(ii)Express t in terms of y.
(d) Express as a single fraction in its simplest form
5/3x -1/6x