Hi,
[tex]\sqrt{18x^{4} y^{3} }[/tex]
[tex] \sqrt{ {3}^{2} \times {2x}^{4} {y}^{2} } [/tex]
[tex] \sqrt{ {3}^{2} \times {2x}^{4} {y}^{2} \times y } [/tex]
[tex] \sqrt{ {3}^{2} } \sqrt{ {x}^{4}} \sqrt{ {y}^{2} } \sqrt{2y} [/tex]
[tex]3 {x}^{2} \sqrt{ {y}^{2} } \sqrt{2y} [/tex]
[tex] {3x}^{2} y \sqrt{2y} [/tex]
good look :))
