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受欢迎的代数 >

-3(x+6)^2-7=0

解答

- 3 (x + 6)^{2} - 7 = 0

解答

x = i \frac{7}{3} - 6, x = - i \frac{7}{3} - 6

求解步骤

- 3 (x + 6)^{2} - 7 = 0

将

7

到右边

- 3 (x + 6)^{2} = 7

两边除以

- 3

(x + 6)^{2} = - \frac{7}{3}

对于

(g (x))^{2} = f (a)

解为

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

解

x + 6 = - \frac{7}{3} : x = i \frac{7}{3} - 6

解

x + 6 = - - \frac{7}{3} : x = - i \frac{7}{3} - 6

二次方程组的解是:

x = i \frac{7}{3} - 6, x = - i \frac{7}{3} - 6

作图

流行的例子

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

3 x (2 x - 5) = - 4 x - 3

20 x^{2} + 25 x + 5 = 0

solvefor c,a=b+c^2d

so l v e f or c, a = b + c^{2} d

solvefor x,x^2+4y^2=0

so l v e f or x, x^{2} + 4 y^{2} = 0