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受欢迎的代数 >

(z^2-1)3=1

解答

(z^{2} - 1) 3 = 1

解答

z = \frac{2}{3}, z = - \frac{2}{3}

+1

十进制

z = 1.15470 \dots, z = - 1.15470 \dots

求解步骤

(z^{2} - 1) \cdot 3 = 1

两边除以

3

z^{2} - 1 = \frac{1}{3}

将

1

到右边

z^{2} = \frac{4}{3}

对于

x^{2} = f (a)

解为

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

z = \frac{4}{3}, z = - \frac{4}{3}

\frac{4}{3} = \frac{2}{3}

- \frac{4}{3} = - \frac{2}{3}

z = \frac{2}{3}, z = - \frac{2}{3}

作图

流行的例子

3 n^{2} - 8 n + 4 = 0

- 3 x^{2} - 11 x + 4 = 0

y^{2} = 2 y - y^{2}

solvefor x,x^2+x+y^2+3/2 y+13/16 =0

so l v e f or x, x^{2} + x + y^{2} + \frac{3}{2} y + \frac{13}{16} = 0

c(x)=x^2+6x+128

c (x) = x^{2} + 6 x + 128