展开 ((4x+4))/((2x-4))

解答

展开

\frac{( 4 x + 4 )}{( 2 x - 4 )}

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

求解步骤

\frac{4 x + 4}{2 x - 4}

分解

4 x + 4 : 4 (x + 1)

= \frac{4 ( x + 1 )}{2 x - 4}

分解

2 x - 4 : 2 (x - 2)

= \frac{4 ( x + 1 )}{2 ( x - 2 )}

数字相除:

\frac{4}{2} = 2

= \frac{2 ( x + 1 )}{( x - 2 )}

去除括号:

(a) = a

= \frac{2 ( x + 1 )}{x - 2}

乘开

2 (x + 1) : 2 x + 2

= \frac{2 x + 2}{x - 2}

\frac{d ^{3}}{d y d x ^{2}} ((f (y, x)) (2 x^{3} + x^{2} y^{4} - 5 y^{2}))

e x p an d \frac{3}{( 4 + 9 e ^{5 x} ) ^{4}}

s im pl i f y (x - 14 - 27) (x - 14 + 27)

e x p an d (2 cos (x^{2} + y^{2}) - 4 x^{2}) (2 cos (x^{2} + y^{2}) - 4 y^{2})

s im pl i f y (y - \frac{1}{4}) (y + \frac{1}{4})