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 >

化简 3 1/5 x+10 7/9-2 2/5 x-10 8/9

解答

化简

3 \frac{1}{5} x + 10 \frac{7}{9} - 2 \frac{2}{5} x - 10 \frac{8}{9}

解答

\frac{4 x}{5} - \frac{1}{9}

求解步骤

3 \frac{1}{5} x + 10 \frac{7}{9} - 2 \frac{2}{5} x - 10 \frac{8}{9}

将带分数转换为假分式:

3 \frac{1}{5} = \frac{16}{5}

= \frac{16}{5} x + 10 \frac{7}{9} - 2 \frac{2}{5} x - 10 \frac{8}{9}

将带分数转换为假分式:

10 \frac{7}{9} = \frac{97}{9}

= \frac{16}{5} x + \frac{97}{9} - 2 \frac{2}{5} x - 10 \frac{8}{9}

将带分数转换为假分式:

2 \frac{2}{5} = \frac{12}{5}

= \frac{16}{5} x + \frac{97}{9} - \frac{12}{5} x - 10 \frac{8}{9}

将带分数转换为假分式:

10 \frac{8}{9} = \frac{98}{9}

= \frac{16}{5} x + \frac{97}{9} - \frac{12}{5} x - \frac{98}{9}

因式分解出通项

x

= x (\frac{16}{5} - \frac{12}{5}) + \frac{97}{9} - \frac{98}{9}

\frac{16}{5} - \frac{12}{5} = \frac{4}{5}

= x \frac{4}{5} + \frac{97}{9} - \frac{98}{9}

合并

x \frac{4}{5} + \frac{97}{9} - \frac{98}{9} : \frac{4}{5} x + \frac{- 1}{9}

= \frac{4}{5} x + \frac{- 1}{9}

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

\frac{- 1}{9} = - \frac{1}{9}

= \frac{4 x}{5} - \frac{1}{9}

流行的例子

s im pl i f y f (- 10)

展开 (x-4)(2x^3+7x^2-5)

e x p an d (x - 4) (2 x^{3} + 7 x^{2} - 5)

化简-1/(sqrt(5))

s im pl i f y - \frac{1}{5}

化简 sqrt(2)× sqrt(8)

s im pl i f y 2 \times 8

s im pl i f y (a + b)^{1}