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 6((x+2)/2)

解答

展开

6 (\frac{x + 2}{2})

解答

3 x + 6

求解步骤

6 (\frac{x + 2}{2})

去除括号:

(a) = a

= 6 \cdot \frac{x + 2}{2}

分式相乘:

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

= \frac{( x + 2 ) \cdot 6}{2}

数字相除:

\frac{6}{2} = 3

= 3 (x + 2)

使用分配律:

a (b + c) = ab + a c

a = 3, b = x, c = 2

= 3 x + 3 \cdot 2

数字相乘:

3 \cdot 2 = 6

= 3 x + 6

流行的例子

展开 (e^{-x})/(x(x^2-3x+2))

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

展开 (sqrt(2)x^2-pixy^3)^2

e x p an d (2 x^{2} - π x y^{3})^{2}

展开 (3ydx+6dx-xdy=0) 1/(xdy)

e x p an d (3 y d x + 6 d x - x d y = 0) \frac{1}{x d y}

展开 W(x-3,x+3)

e x p an d W (x - 3, x + 3)

展开 (e^{2x}-e^{4x})^2

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