zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的代数 >

6.28((4-x)/2)^2=20.12

解答

6.28 (\frac{4 - x}{2})^{2} = 20.12

解答

x = - 2 \frac{503}{157} + 4, x = 2 \frac{503}{157} + 4

+1

十进制

x = 0.42015 \dots, x = 7.57984 \dots

求解步骤

6.28 (\frac{4 - x}{2})^{2} = 20.12

在两边乘以

100

628 (\frac{4 - x}{2})^{2} = 2012

两边除以

628

(\frac{4 - x}{2})^{2} = \frac{503}{157}

对于

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

解为

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

解

\frac{4 - x}{2} = \frac{503}{157} : x = - 2 \frac{503}{157} + 4

解

\frac{4 - x}{2} = - \frac{503}{157} : x = 2 \frac{503}{157} + 4

二次方程组的解是:

x = - 2 \frac{503}{157} + 4, x = 2 \frac{503}{157} + 4

作图

流行的例子

(x - 4) (x - 10) = 0

2x^2-6=x^2+7x-9

2 x^{2} - 6 = x^{2} + 7 x - 9

4 (x + 5)^{2} - 49 = 0

completesquare x^2-20x+24=0

co m pl e t es q u a re x^{2} - 20 x + 24 = 0

4((x+1)/2)^2-5=0

4 (\frac{x + 1}{2})^{2} - 5 = 0