ada yg bisa jawab ngga bantu dong

[tex] \frac{8x + 21} {x - 2} = \frac{8x + 21}{x - 2} \times \frac{x + 2}{x + 2} = \frac{ {x}^{2} + 21x + 16x + 42 }{{x}^{2} - 2x + 2x - 4} = \frac{ {x}^{2} + 37x + 42}{ {x}^{2} - 4} [/tex]