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受欢迎的代数 >

5(5x-6)^2-27=18

解答

5 (5 x - 6)^{2} - 27 = 18

解答

x = \frac{9}{5}, x = \frac{3}{5}

+1

十进制

x = 1.8, x = 0.6

求解步骤

5 (5 x - 6)^{2} - 27 = 18

将

27

到右边

5 (5 x - 6)^{2} = 45

两边除以

5

(5 x - 6)^{2} = 9

对于

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

解为

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

解

5 x - 6 = 9 : x = \frac{9}{5}

解

5 x - 6 = - 9 : x = \frac{3}{5}

二次方程组的解是:

x = \frac{9}{5}, x = \frac{3}{5}

作图

流行的例子

(60-3x)× (32-x)=480

(60 - 3 x) \times (32 - x) = 480

- x^{2} = 12

4a^2x^2+8ax+3=0

4 a^{2} x^{2} + 8 a x + 3 = 0

2 x^{2} - 11 x + 16 = 0

10 x^{2} - 6 x - 3 = 0