化简 8(3/4+2x)

解答

化简

8 (\frac{3}{4} + 2 x)

16 x + 6

求解步骤

8 (\frac{3}{4} + 2 x)

合并

\frac{3}{4} + 2 x : \frac{8 x + 3}{4}

= 8 \cdot \frac{8 x + 3}{4}

使用分式法则:

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

= \frac{8 ( 8 x + 3 )}{4}

数字相除:

\frac{8}{4} = 2

= 2 (8 x + 3)

展开

2 (8 x + 3) : 16 x + 6

= 16 x + 6

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