展开 (2(X-3))/3

解答

展开

\frac{2 ( X - 3 )}{3}

\frac{2 X}{3} - 2

求解步骤

\frac{2 ( X - 3 )}{3}

乘开

2 (X - 3) : 2 X - 6

= \frac{2 X - 6}{3}

使用分式法则:

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

\frac{2 X - 6}{3} = \frac{2 X}{3} - \frac{6}{3}

= \frac{2 X}{3} - \frac{6}{3}

数字相除:

\frac{6}{3} = 2

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

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