展开 x^{1/4}(3x-3)

解答

展开

x^{\frac{1}{4}} (3 x - 3)

3 x^{\frac{5}{4}} - x^{\frac{1}{4}} \cdot 3

求解步骤

x^{\frac{1}{4}} (3 x - 3)

使用分配律:

a (b - c) = ab - a c

x^{\frac{1}{4}} (3 x - 3) = x^{\frac{1}{4}} \cdot 3 x - x^{\frac{1}{4}} \cdot 3

= x^{\frac{1}{4}} \cdot 3 x - x^{\frac{1}{4}} \cdot 3

化简

x^{\frac{1}{4}} \cdot 3 x : 3 x^{\frac{5}{4}}

= 3 x^{\frac{5}{4}} - x^{\frac{1}{4}} \cdot 3

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