4x² - 9y / 2x² - 11xy +12y²

[tex] \frac{4 {x}^{2} - 9y }{2 {x}^{2} - 11xy + 12 {y}^{2} } \\ = \frac{2 - 3}{ - 11xy + 4y} [/tex]
maaf jika salah