bentuk sederhana dari x^-2x=15 per x2-2x-3

[tex]x {}^{2} - 2x = 15 \: = > x {}^{2} - 2x - 15 \\ = > \frac{x {}^{2} - 2x - 15}{x {}^{2} - 2x - 3 } = \frac{(x - 5)(x + 3)}{(x - 3)(x + 1)} [/tex]

maaf kalau salah