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 >

12x^2+x=63

解答

12 x^{2} + x = 63

解答

x = \frac{9}{4}, x = - \frac{7}{3}

+1

十进制

x = 2.25, x = - 2.33333 \dots

求解步骤

12 x^{2} + x = 63

将

63

para o lado esquerdo

12 x^{2} + x - 63 = 0

使用求根公式求解

x_{1, 2} = \frac{- 1 \pm 1 ^{2} - 4 \cdot 12 ( - 63 )}{2 \cdot 12}

1^{2} - 4 \cdot 12 (- 63) = 55

x_{1, 2} = \frac{- 1 \pm 55}{2 \cdot 12}

将解分隔开

x_{1} = \frac{- 1 + 55}{2 \cdot 12}, x_{2} = \frac{- 1 - 55}{2 \cdot 12}

x = \frac{- 1 + 55}{2 \cdot 12} : \frac{9}{4}

x = \frac{- 1 - 55}{2 \cdot 12} : - \frac{7}{3}

二次方程组的解是:

x = \frac{9}{4}, x = - \frac{7}{3}

作图

流行的例子

4 x - x^{2} = x + 1

m^2-49/2 m= 1/2

m^{2} - \frac{49}{2} m = \frac{1}{2}

solvefor a,y=(ax+b)^2

so l v e f or a, y = (a x + b)^{2}

1 2^{2} + b^{2} = 3 7^{2}

12+1.6x=8x-1/5 x^2

12 + 1.6 x = 8 x - \frac{1}{5} x^{2}