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 >

(1+6s)^2=1+30s

解答

(1 + 6 s)^{2} = 1 + 30 s

解答

s = \frac{1}{2}, s = 0

+1

十进制

s = 0.5, s = 0

求解步骤

(1 + 6 s)^{2} = 1 + 30 s

展开

(1 + 6 s)^{2} : 1 + 12 s + 36 s^{2}

1 + 12 s + 36 s^{2} = 1 + 30 s

将

30 s

para o lado esquerdo

36 s^{2} - 18 s + 1 = 1

将

1

para o lado esquerdo

36 s^{2} - 18 s = 0

使用求根公式求解

s_{1, 2} = \frac{- ( - 18 ) \pm ( - 18 ) ^{2} - 4 \cdot 36 \cdot 0}{2 \cdot 36}

(- 18)^{2} - 4 \cdot 36 \cdot 0 = 18

s_{1, 2} = \frac{- ( - 18 ) \pm 18}{2 \cdot 36}

将解分隔开

s_{1} = \frac{- ( - 18 ) + 18}{2 \cdot 36}, s_{2} = \frac{- ( - 18 ) - 18}{2 \cdot 36}

s = \frac{- ( - 18 ) + 18}{2 \cdot 36} : \frac{1}{2}

s = \frac{- ( - 18 ) - 18}{2 \cdot 36} : 0

二次方程组的解是:

s = \frac{1}{2}, s = 0

作图

流行的例子

4x+6=4(6x-3)+58

4 x + 6 = 4 (6 x - 3) + 58

- 63 < - 9 c

3 d - 2 \leq - 5 d + 9

2 - ∣ x + 2 ∣ = - 6

w^{2} = 32 w