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\frac{\left(x-6\right)\left(x-4\right)}{\left(x-4\right)\left(x+4\right)}-\frac{\left(x+2\right)\left(x+4\right)}{\left(x-4\right)\left(x+4\right)}
Da biste zbrojili ili oduzeli izraze, proširite ih da bi imali iste nazivnike. Najmanji zajednički višekratnik brojeva x+4 i x-4 jest \left(x-4\right)\left(x+4\right). Pomnožite \frac{x-6}{x+4} i \frac{x-4}{x-4}. Pomnožite \frac{x+2}{x-4} i \frac{x+4}{x+4}.
\frac{\left(x-6\right)\left(x-4\right)-\left(x+2\right)\left(x+4\right)}{\left(x-4\right)\left(x+4\right)}
Budući da \frac{\left(x-6\right)\left(x-4\right)}{\left(x-4\right)\left(x+4\right)} i \frac{\left(x+2\right)\left(x+4\right)}{\left(x-4\right)\left(x+4\right)} imaju isti nazivnik, oduzmite ih oduzimanje njihovih brojnika.
\frac{x^{2}-4x-6x+24-x^{2}-4x-2x-8}{\left(x-4\right)\left(x+4\right)}
Pomnožite izraz \left(x-6\right)\left(x-4\right)-\left(x+2\right)\left(x+4\right).
\frac{-16x+16}{\left(x-4\right)\left(x+4\right)}
Kombinirajte slične izraze u x^{2}-4x-6x+24-x^{2}-4x-2x-8.
\frac{-16x+16}{x^{2}-16}
Proširivanje broja \left(x-4\right)\left(x+4\right).
\frac{\left(x-6\right)\left(x-4\right)}{\left(x-4\right)\left(x+4\right)}-\frac{\left(x+2\right)\left(x+4\right)}{\left(x-4\right)\left(x+4\right)}
Da biste zbrojili ili oduzeli izraze, proširite ih da bi imali iste nazivnike. Najmanji zajednički višekratnik brojeva x+4 i x-4 jest \left(x-4\right)\left(x+4\right). Pomnožite \frac{x-6}{x+4} i \frac{x-4}{x-4}. Pomnožite \frac{x+2}{x-4} i \frac{x+4}{x+4}.
\frac{\left(x-6\right)\left(x-4\right)-\left(x+2\right)\left(x+4\right)}{\left(x-4\right)\left(x+4\right)}
Budući da \frac{\left(x-6\right)\left(x-4\right)}{\left(x-4\right)\left(x+4\right)} i \frac{\left(x+2\right)\left(x+4\right)}{\left(x-4\right)\left(x+4\right)} imaju isti nazivnik, oduzmite ih oduzimanje njihovih brojnika.
\frac{x^{2}-4x-6x+24-x^{2}-4x-2x-8}{\left(x-4\right)\left(x+4\right)}
Pomnožite izraz \left(x-6\right)\left(x-4\right)-\left(x+2\right)\left(x+4\right).
\frac{-16x+16}{\left(x-4\right)\left(x+4\right)}
Kombinirajte slične izraze u x^{2}-4x-6x+24-x^{2}-4x-2x-8.
\frac{-16x+16}{x^{2}-16}
Proširivanje broja \left(x-4\right)\left(x+4\right).