Question

Factorise the following​

Answer 1

Answer:

$22{z}^{2} xy$

Step-by-step explanation:

$(4 {y}^{2} - 12xy + 9 {x}^{2} ) - 4 {z}^{2} \\ (8x {y}^{2} + 9 {x}^{2} ) - 4 {z}^{2} \\ (17 {x}^{3} {y}^{3} ) - 4 {z}^{2} \\ - 4 {z}^{2} - 17xy \\ 4 {z}^{2} + 17xy \\ = 22 {z}^{2} xy$