Subject :IMO Class : Class 8
Expansion of (2a + 3b + 4c)2 is ____.
(A) 4a2 + 9b2 + 16c2 + 12ab + 24bc + 16ca
(B) a2 + b2 + 2ca
(C) a2 - b2- 2ca
(D) a2 -
b2 + 2ca
what is this