Sederhanakan persamaan berikut x²-9 per 2x²+9x+9

[tex] \frac{ {x}^{2} - 9 }{2 {x}^{2} + 9 x+ 9} = \frac{(x + 3) \: ( \times - 3)}{(2x + 3) \: (x + 3)} = \frac{x + 3}{2 x + 3 } [/tex]



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