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 >

5/2 =(5x^2)/4

解答

\frac{5}{2} = \frac{5 x ^{2}}{4}

解答

x = 2, x = - 2

+1

十进制

x = 1.41421 \dots, x = - 1.41421 \dots

求解步骤

\frac{5}{2} = \frac{5 x ^{2}}{4}

交换两边

\frac{5 x ^{2}}{4} = \frac{5}{2}

在两边乘以

4

5 x^{2} = 10

两边除以

5

x^{2} = 2

对于

x^{2} = f (a)

解为

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

x = 2, x = - 2

作图

流行的例子

solvefor x,z=x^2+y^2-4

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

3 x^{2} + 15 x - 72 = 0

(x - 2) \cdot (x + 4) = 0

(5 x + 8) (7 x - 5) = 0

a = 34 x^{2} + x