If (x−1x)=6, then (x2+1x2)=?
(a) 36 (b) 38 (c) 32 (d) 36136
Tick (✓) the correct answer in each of the following: (x−6)(x−6)=?
(a) (x2−36) (b) (x2+36) (c) (x2−6x+36) (d) (x2−12x+36)