C-03-Q049mediumsingle_mcqSquare of (3b−5c−2a)=?(3b - 5c - 2a) = ?(3b−5c−2a)=?a9b2+25c2+4a2−30bc+10ac−12ab9b^2 + 25c^2 + 4a^2 - 30bc + 10ac - 12ab9b2+25c2+4a