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 >

4c^2+3c-2=0

解答

4 c^{2} + 3 c - 2 = 0

解答

c = \frac{- 3 + 41}{8}, c = \frac{- 3 - 41}{8}

+1

十进制

c = 0.42539 \dots, c = - 1.17539 \dots

求解步骤

4 c^{2} + 3 c - 2 = 0

使用求根公式求解

c_{1, 2} = \frac{- 3 \pm 3 ^{2} - 4 \cdot 4 ( - 2 )}{2 \cdot 4}

3^{2} - 4 \cdot 4 (- 2) = 41

c_{1, 2} = \frac{- 3 \pm 41}{2 \cdot 4}

将解分隔开

c_{1} = \frac{- 3 + 41}{2 \cdot 4}, c_{2} = \frac{- 3 - 41}{2 \cdot 4}

c = \frac{- 3 + 41}{2 \cdot 4} : \frac{- 3 + 41}{8}

c = \frac{- 3 - 41}{2 \cdot 4} : \frac{- 3 - 41}{8}

二次方程组的解是:

c = \frac{- 3 + 41}{8}, c = \frac{- 3 - 41}{8}

作图

流行的例子

\frac{5 ^{9}}{5 ^{2}} = 5

s im pl i f y - 4 - 6

longmult 0.25*0.25

l o n g m u lt 0.25 \cdot 0.25

6 x^{2} + \frac{5}{2} = 8 x

3^{2} + 2^{2} = c^{2}