(i) How much more than 2x2+4xy+2y2 is 5x2+10xy−y2 ?
(ii) How much less than 2a2+1 is than 3a2−6 ?
(i) 5x2+10xy−y2+2x2 + 4xy +2y2− − − ––––––––––––––––3x2+6xy−3y2––––––––––––––––––Ans.
(ii) 3a2−6+2a2 + 1− − ––––––––––– a2−7–––––––––––Ans.