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受欢迎的代数 >

4(2x^2-1)=-(1+4x^2)

解答

4 (2 x^{2} - 1) = - (1 + 4 x^{2})

解答

x = \frac{1}{2}, x = - \frac{1}{2}

+1

十进制

x = 0.5, x = - 0.5

求解步骤

4 (2 x^{2} - 1) = - (1 + 4 x^{2})

展开

4 (2 x^{2} - 1) : 8 x^{2} - 4

展开

- (1 + 4 x^{2}) : - 1 - 4 x^{2}

8 x^{2} - 4 = - 1 - 4 x^{2}

将

4

到右边

8 x^{2} = - 4 x^{2} + 3

将

4 x^{2}

para o lado esquerdo

12 x^{2} = 3

两边除以

12

x^{2} = \frac{1}{4}

对于

x^{2} = f (a)

解为

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

x = \frac{1}{4}, x = - \frac{1}{4}

\frac{1}{4} = \frac{1}{2}

- \frac{1}{4} = - \frac{1}{2}

x = \frac{1}{2}, x = - \frac{1}{2}

作图

流行的例子

s im pl i f y 2 \cdot \frac{5}{2}

3 h^{2} + 17 h = - 10

3 (3 x - 3) = 27

4 x - 8 = 6 x + 12

9 x^{2} - 18 x + 9 = 0