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\frac{3x^{2}+5x}{\left(x-4\right)\left(x+1\right)}-2
Rastavite x^{2}-3x-4 na faktore.
\frac{3x^{2}+5x}{\left(x-4\right)\left(x+1\right)}-\frac{2\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)}
Da biste zbrojili ili oduzeli izraze, proširite ih da bi imali iste nazivnike. Pomnožite 2 i \frac{\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)}.
\frac{3x^{2}+5x-2\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)}
Budući da \frac{3x^{2}+5x}{\left(x-4\right)\left(x+1\right)} i \frac{2\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)} imaju isti nazivnik, oduzmite ih oduzimanje njihovih brojnika.
\frac{3x^{2}+5x-2x^{2}-2x+8x+8}{\left(x-4\right)\left(x+1\right)}
Pomnožite izraz 3x^{2}+5x-2\left(x-4\right)\left(x+1\right).
\frac{x^{2}+11x+8}{\left(x-4\right)\left(x+1\right)}
Kombinirajte slične izraze u 3x^{2}+5x-2x^{2}-2x+8x+8.
\frac{x^{2}+11x+8}{x^{2}-3x-4}
Proširivanje broja \left(x-4\right)\left(x+1\right).
\frac{3x^{2}+5x}{\left(x-4\right)\left(x+1\right)}-2
Rastavite x^{2}-3x-4 na faktore.
\frac{3x^{2}+5x}{\left(x-4\right)\left(x+1\right)}-\frac{2\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)}
Da biste zbrojili ili oduzeli izraze, proširite ih da bi imali iste nazivnike. Pomnožite 2 i \frac{\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)}.
\frac{3x^{2}+5x-2\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)}
Budući da \frac{3x^{2}+5x}{\left(x-4\right)\left(x+1\right)} i \frac{2\left(x-4\right)\left(x+1\right)}{\left(x-4\right)\left(x+1\right)} imaju isti nazivnik, oduzmite ih oduzimanje njihovih brojnika.
\frac{3x^{2}+5x-2x^{2}-2x+8x+8}{\left(x-4\right)\left(x+1\right)}
Pomnožite izraz 3x^{2}+5x-2\left(x-4\right)\left(x+1\right).
\frac{x^{2}+11x+8}{\left(x-4\right)\left(x+1\right)}
Kombinirajte slične izraze u 3x^{2}+5x-2x^{2}-2x+8x+8.
\frac{x^{2}+11x+8}{x^{2}-3x-4}
Proširivanje broja \left(x-4\right)\left(x+1\right).