PDF chapter test TRY NOW

Answer variants:
8p312p214p+60
25x2+16y2
27a3+27a218a8
p2+4q2+9r2+4pq+12qr+6pr
p2+4q2+9r24pq+12qr6pr
x2+4y2+9z2+4xy+12yz+6xz
x2+4y2+9z2+108xyz
27a3+27a2+18a+8
Expand the following using identities:
 
S.NoExpressionsExpansion
(i)\((x + 2y + 3z)^2\)
(ii)\((-p + 2q + 3r)^2\)
(iii)\((2p + 3)(2p - 4)(2p - 5)\)
(iv)\((3a + 1)(3a - 2)(3a + 4)\)