#### Question

Find the following squares by suing the identities

(*xy* + 3*z*)^{2}

#### Solution

(xy + 3z)^{2} = (xy)^{2} + 2(xy) (3z) + (3z)^{2} [(a + b)^{2} = a^{2} + 2ab + b^{2}]

= x^{2}y^{2} + 6xyz + 9z^{2}

Is there an error in this question or solution?

Solution Find the Following Squares by Suing the Identities (Xy + 3z)Square2 Concept: Standard Identities.