展开 ((x+3))/((x-5)(x+2))

解答

展开

\frac{( x + 3 )}{( x - 5 ) ( x + 2 )}

\frac{x + 3}{x ^{2} - 3 x - 10}

求解步骤

\frac{x + 3}{( x - 5 ) ( x + 2 )}

乘开

(x - 5) (x + 2) : x^{2} - 3 x - 10

= \frac{x + 3}{x ^{2} - 3 x - 10}

e x p an d \frac{1}{( x + 1 - 2 j ) ( x + 1 + 2 j )}

e x p an d (e - 2 f)^{2}

e x p an d 0.00024375 \cdot \frac{( 1 + 2.9 s )}{( 1 + 0.85 s )}

e x p an d t \cdot (H (t - 1) - H (t - 5)) + H (t - 5)

e x p an d (\frac{1}{y}) ((e^{x} + y^{2}) d x + (x y - \frac{e ^{x}}{y} - 2 y^{2}) d y = 0)