Nilaikan
\frac{x^{2}+5}{\left(x+5\right)\left(x^{2}-1\right)}
Kembangkan
\frac{x^{2}+5}{\left(x+5\right)\left(x^{2}-1\right)}
Graf
Kongsi
Disalin ke papan klip
\frac{x+2}{\left(x-1\right)\left(x+5\right)}-\frac{3}{\left(x+1\right)\left(x+5\right)}
Faktor x^{2}+4x-5. Faktor x^{2}+6x+5.
\frac{\left(x+2\right)\left(x+1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}-\frac{3\left(x-1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Untuk menambah atau menolak ungkapan, kembangkannya untuk membuat penyebut mereka sama. Gandaan sepunya terkecil \left(x-1\right)\left(x+5\right) dan \left(x+1\right)\left(x+5\right) ialah \left(x-1\right)\left(x+1\right)\left(x+5\right). Darabkan \frac{x+2}{\left(x-1\right)\left(x+5\right)} kali \frac{x+1}{x+1}. Darabkan \frac{3}{\left(x+1\right)\left(x+5\right)} kali \frac{x-1}{x-1}.
\frac{\left(x+2\right)\left(x+1\right)-3\left(x-1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Oleh kerana \frac{\left(x+2\right)\left(x+1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)} dan \frac{3\left(x-1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)} mempunyai penyebut yang sama, tolakkan dengan menolakkan pengangka.
\frac{x^{2}+x+2x+2-3x+3}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Lakukan pendaraban dalam \left(x+2\right)\left(x+1\right)-3\left(x-1\right).
\frac{x^{2}+5}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Gabungkan sebutan serupa dalam x^{2}+x+2x+2-3x+3.
\frac{x^{2}+5}{x^{3}+5x^{2}-x-5}
Kembangkan \left(x-1\right)\left(x+1\right)\left(x+5\right).
\frac{x+2}{\left(x-1\right)\left(x+5\right)}-\frac{3}{\left(x+1\right)\left(x+5\right)}
Faktor x^{2}+4x-5. Faktor x^{2}+6x+5.
\frac{\left(x+2\right)\left(x+1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}-\frac{3\left(x-1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Untuk menambah atau menolak ungkapan, kembangkannya untuk membuat penyebut mereka sama. Gandaan sepunya terkecil \left(x-1\right)\left(x+5\right) dan \left(x+1\right)\left(x+5\right) ialah \left(x-1\right)\left(x+1\right)\left(x+5\right). Darabkan \frac{x+2}{\left(x-1\right)\left(x+5\right)} kali \frac{x+1}{x+1}. Darabkan \frac{3}{\left(x+1\right)\left(x+5\right)} kali \frac{x-1}{x-1}.
\frac{\left(x+2\right)\left(x+1\right)-3\left(x-1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Oleh kerana \frac{\left(x+2\right)\left(x+1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)} dan \frac{3\left(x-1\right)}{\left(x-1\right)\left(x+1\right)\left(x+5\right)} mempunyai penyebut yang sama, tolakkan dengan menolakkan pengangka.
\frac{x^{2}+x+2x+2-3x+3}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Lakukan pendaraban dalam \left(x+2\right)\left(x+1\right)-3\left(x-1\right).
\frac{x^{2}+5}{\left(x-1\right)\left(x+1\right)\left(x+5\right)}
Gabungkan sebutan serupa dalam x^{2}+x+2x+2-3x+3.
\frac{x^{2}+5}{x^{3}+5x^{2}-x-5}
Kembangkan \left(x-1\right)\left(x+1\right)\left(x+5\right).
Contoh
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y = 3x + 4
Aritmetik
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Matriks
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Persamaan serentak
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Pembezaan
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Pengamiran
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Had
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