展开 (2(sqrt(3354)-27))/3

解答

展开

\frac{2 ( 3354 - 27 )}{3}

\frac{2 1118}{3} - 18

十进制

20.60915 \dots

求解步骤

\frac{2 ( 3354 - 27 )}{3}

乘开

2 (3354 - 27) : 23354 - 54

= \frac{2 3354 - 54}{3}

使用分式法则:

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

\frac{2 3354 - 54}{3} = \frac{2 3354}{3} - \frac{54}{3}

= \frac{2 3354}{3} - \frac{54}{3}

\frac{2 3354}{3} = \frac{2 1118}{3}

\frac{54}{3} = 18

= \frac{2 1118}{3} - 18

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