zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的代数 >

展开 1/2 ((6m-4)/m)

解答

展开

\frac{1}{2} (\frac{6 m - 4}{m})

解答

3 - \frac{2}{m}

求解步骤

\frac{1}{2} (\frac{6 m - 4}{m})

去除括号:

(a) = a

= \frac{1}{2} \cdot \frac{6 m - 4}{m}

分式相乘:

\frac{a}{b} \cdot \frac{c}{d} = \frac{a \cdot c}{b \cdot d}

= \frac{1 \cdot ( 6 m - 4 )}{2 m}

1 \cdot (6 m - 4) = 6 m - 4

= \frac{6 m - 4}{2 m}

分解

6 m - 4 : 2 (3 m - 2)

= \frac{2 ( 3 m - 2 )}{2 m}

数字相除:

\frac{2}{2} = 1

= \frac{3 m - 2}{m}

使用分式法则:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{3 m - 2}{m} = \frac{3 m}{m} - \frac{2}{m}

= \frac{3 m}{m} - \frac{2}{m}

消掉

\frac{3 m}{m} : 3

= 3 - \frac{2}{m}

流行的例子

展开 (1-x^2)y''(x)-2xy'(x)+a(a+1)y

e x p an d (1 - x^{2}) y^{''} (x) - 2 x y^{'} (x) + a (a + 1) y

展开 A(1,-3)yB(5.1)

e x p an d A (1, - 3) y B (5.1)

展开 ((x+5)2)/3

e x p an d \frac{( x + 5 ) 2}{3}

展开 (-x^2+6x+7)/((x^2+7)^2)

e x p an d \frac{- x ^{2} + 6 x + 7}{( x ^{2} + 7 ) ^{2}}

展开 [2(5x-4)ln(x)-5x(ln(x))^2]

e x p an d [2 (5 x - 4) ln (x) - 5 x (ln (x))^{2}]