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受欢迎的代数 >

\sqrt[3]{x}= x/4

解答

3 x = \frac{x}{4}

解答

x = 0, x = - 8, x = 8

求解步骤

3 x = \frac{x}{4}

在两边乘以

4

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

化简

3 x \cdot 4 = x

对方程式两边

3

次方:

64 x = x^{3}

64 x = x^{3}

解

64 x = x^{3} : x = 0, x = - 8, x = 8

x = 0, x = - 8, x = 8

验证解:

x = 0

真

, x = - 8

真

, x = 8

真

解为

x = 0, x = - 8, x = 8

作图

流行的例子

3x-17x^{1/2}+10=0

3 x - 17 x^{\frac{1}{2}} + 10 = 0

5 - x = 4

3 z + 6 - z = 2

sqrt(25-3x)=x-9

25 - 3 x = x - 9

2 x + 7 = x + 3