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受欢迎的代数 >

5x^2-1=0

解答

5 x^{2} - 1 = 0

解答

x = \frac{1}{5}, x = - \frac{1}{5}

+1

十进制

x = 0.4472135955, x = - 0.4472135955

求解步骤

5 x^{2} - 1 = 0

将

1

到右边

5 x^{2} = 1

两边除以

5

x^{2} = \frac{1}{5}

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

x = \frac{1}{5}, x = - \frac{1}{5}

\frac{1}{5} = \frac{1}{5}

- \frac{1}{5} = - \frac{1}{5}

x = \frac{1}{5}, x = - \frac{1}{5}

作图

流行的例子

2.5(6.25x+0.5)=11

2.5 (6.25 x + 0.5) = 11

- \frac{7}{8} t < - 14

3 y^{2} + 4 y = 8 y - 7

因式分解 x^2-64y^2

f a c t or x^{2} - 64 y^{2}

x^{2} - 27 = 0