Question

find the following squares by using the identities (XY+3z)2

out of the question - 2 means square​

Answer 1

Answer:

$(xy + 3z) ^{2} \\ \\ (x + y) ^{2} = {x}^{2} + {y}^{2} + 2xy \\ \\ acc \: to \: this \\ \\ {x}^{2} {y}^{2} + 9 {z}^{2} + 6xyz$