化简 (9x)^{1/2}

解答

化简

(9 x)^{\frac{1}{2}}

3 x^{\frac{1}{2}}

求解步骤

(9 x)^{\frac{1}{2}}

使用指数法则:

(a \cdot b)^{n} = a^{n} b^{n}

(9 x)^{\frac{1}{2}} = 9^{\frac{1}{2}} x^{\frac{1}{2}}

= 9^{\frac{1}{2}} x^{\frac{1}{2}}

9^{\frac{1}{2}} = 3

= 3 x^{\frac{1}{2}}

x^{2} - x > 0

s im pl i f y (- 3 c^{4} - 5 c^{2} - 7 c) + (4 c^{4} + 8 c^{3} + 2 c^{2})

\frac{2 ( x + 3 )}{5} + \frac{3 ( x - 6 )}{2} = \frac{2}{5} + \frac{10 ( 2 x + 1 )}{6}

2 x - 4 = 2

(8 w - 4)^{2} = 0