展开 (2(x+6))/3

解答

展开

\frac{2 ( x + 6 )}{3}

\frac{2 x}{3} + 4

求解步骤

\frac{2 ( x + 6 )}{3}

乘开

2 (x + 6) : 2 x + 12

= \frac{2 x + 12}{3}

使用分式法则:

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

\frac{2 x + 12}{3} = \frac{2 x}{3} + \frac{12}{3}

= \frac{2 x}{3} + \frac{12}{3}

数字相除:

\frac{12}{3} = 4

= \frac{2 x}{3} + 4

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e x p an d \frac{cos ( x )}{tan ( x ) ( 1 - sin ( x ) )}

e x p an d \frac{x - 1}{y} \frac{x - 1}{y} - 1 + 1

e x p an d lo g_{10} (a)

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