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 >

2(x-1)^2=90

解答

2 (x - 1)^{2} = 90

解答

x = 35 + 1, x = - 35 + 1

+1

十进制

x = 7.70820 \dots, x = - 5.70820 \dots

求解步骤

2 (x - 1)^{2} = 90

两边除以

2

(x - 1)^{2} = 45

对于

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

解为

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

解

x - 1 = 45 : x = 35 + 1

解

x - 1 = - 45 : x = - 35 + 1

二次方程组的解是:

x = 35 + 1, x = - 35 + 1

作图

流行的例子

(a+4)x^2-1=(2a+2)x-a

(a + 4) x^{2} - 1 = (2 a + 2) x - a

n^{2} - n = - 41

solvefor y,x^3y^2-5x^2y+x=1

so l v e f or y, x^{3} y^{2} - 5 x^{2} y + x = 1

x^{2} - 25 x - 5 = 0

2 x^{2} - 16 x - 7 = 0