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受欢迎的代数 >

27-6Q^2=0

解答

27 - 6 Q^{2} = 0

解答

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

+1

十进制

Q = 2.12132 \dots, Q = - 2.12132 \dots

求解步骤

27 - 6 Q^{2} = 0

将

27

到右边

- 6 Q^{2} = - 27

两边除以

- 6

Q^{2} = \frac{9}{2}

对于

x^{2} = f (a)

解为

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

Q = \frac{9}{2}, Q = - \frac{9}{2}

\frac{9}{2} = \frac{3}{2}

- \frac{9}{2} = - \frac{3}{2}

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

作图

流行的例子

- 2 y^{2} = 8 - 8 y

2 x (x - 4) = 3 x + 1

x^{2} - 5 x = 9

(x + 4) (x + 4) = 0

(x + 1)^{2} = \frac{9}{4}