Write the following in the expanded form:
(i) (a+25b+c)2
(ii) (2a-3b-c)2
(iii) (-3x+y+z)2
(iv) (m+2n-5p)2
(v) (2+x-2y)2
(vi) (a2+b2+c2)2
(vii) (ab+bc+ca)2
(viii) (x/y+y/z+z/x)2
(ix) (a/bc + b/ca + c/ab)2
(x) (x+2y+4z)2
(xi) (2x-y+z)2
(xii) (-2x+3y+2z)2