展开 (4y^9)/(8y^3)

解答

展开

\frac{4 y ^{9}}{8 y ^{3}}

\frac{y ^{6}}{2}

求解步骤

\frac{4 y ^{9}}{8 y ^{3}}

约分:

4

= \frac{y ^{9}}{2 y ^{3}}

使用指数法则:

\frac{x ^{a}}{x ^{b}} = x^{a - b}

\frac{y ^{9}}{y ^{3}} = y^{9 - 3}

= \frac{y ^{9 - 3}}{2}

数字相减:

9 - 3 = 6

= \frac{y ^{6}}{2}

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