If (x - a) (x - b) = 1 and a - b + 5 = 0, then the value of is
-125
1
125
125
D.
125
Out of the given responses, one of the factors of
(a2 - b2)3 + (b2 - c2)3 + (c2 - a2)3 is
(a + b) (a - b)
(a + b) (a + b)
(a - b) (a - b)
(a - b) (a - b)