化简 1/(x-(x){x-\frac{x^2)/(x+1)}}

解答

化简

\frac{1}{x - \frac{x}{x - \frac{x ^{2}}{x + 1}}}

- 1

求解步骤

\frac{1}{x - \frac{x}{x - \frac{x ^{2}}{x + 1}}}

化简

x - \frac{x}{x - \frac{x ^{2}}{x + 1}} : - 1

= \frac{1}{- 1}

使用分式法则:

\frac{a}{- 1} = - a

= - 1

s im pl i f y (5 x y + 7 z + 12 x) + (6 x - 8 z + 4 x y) - (3 z - 15 x y)

e x p an d (a + b) (x + y)

l o n g m u lt 1.5 \times 2

s im pl i f y \frac{4}{7 - 5}

f a c t or 15 x + 25