Q24 (b+c)2 a2 bc (c+a)2 b2 ca (a+b)2 c2 ab
=(a-b)(b-c)(c-a)(a+b+c)(a2+b2+c2)
Solution
,
(b+c)2 | a2 | bc |
(c+a)2 | b2 | ca |
(a+b)2 | c2 | ab |