化简 8(1+sqrt(7))+(8-16sqrt(7))/9

解答

化简

8 (1 + 7) + \frac{8 - 16 7}{9}

\frac{80 + 56 7}{9}

十进制

25.35134 \dots

求解步骤

8 (1 + 7) + \frac{8 - 16 7}{9}

将

8 (1 + 7)

转换为分数

: \frac{72 ( 1 + 7 )}{9}

= \frac{72 ( 1 + 7 )}{9} + \frac{8 - 16 7}{9}

\frac{72 ( 1 + 7 )}{9} + \frac{8 - 16 7}{9} = \frac{72 ( 1 + 7 ) + 8 - 16 7}{9}

= \frac{72 ( 1 + 7 ) + 8 - 16 7}{9}

化简

72 (1 + 7) + 8 - 167 : 80 + 567

= \frac{80 + 56 7}{9}

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