`(963xx963xx963+137xx137xx137)/(963xx963-963xx137+137xx137)=?`

(137 xx 137 + 137 xx 133 + 133 xx 133)/(137 xx 137 xx 137 - 133 xx 133 xx 133) is equal to

Evaluate: ( i) 986xx137+986xx863 (ii) 983xx207-983xx107

Simplify:- '(137*137 + 137*133 + 133*133) / (137*137*137 - 133*133*133)'

Find the value of: (i) (82)^(2) - (18)^(2) (ii) (128)^(2) - (72)^(2) (iii) 197 xx 203 (iv) (198 xx 198 - 102 xx 102)/(96) (v) (14.7 xx 15.3) (vi) (8.63)^(2) - (1.37)^(2)