展开 (5+z)/((z-1)(z+4))

解答

展开

\frac{5 + z}{( z - 1 ) ( z + 4 )}

\frac{5 + z}{z ^{2} + 3 z - 4}

求解步骤

\frac{5 + z}{( z - 1 ) ( z + 4 )}

乘开

(z - 1) (z + 4) : z^{2} + 3 z - 4

= \frac{5 + z}{z ^{2} + 3 z - 4}

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