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 >

(5x-7)(2x+1)-10x(x-4)=0

解答

(5 x - 7) (2 x + 1) - 10 x (x - 4) = 0

解答

x = \frac{7}{31}

+1

十进制

x = 0.22580 \dots

求解步骤

(5 x - 7) (2 x + 1) - 10 x (x - 4) = 0

展开

(5 x - 7) (2 x + 1) - 10 x (x - 4) : 31 x - 7

31 x - 7 = 0

将

7

到右边

31 x = 7

两边除以

31

x = \frac{7}{31}

作图

流行的例子

n + 8 = 22

solvefor x,18x-15y=-315

so l v e f or x, 18 x - 15 y = - 315

5 p - 11 = 13 p - 43

log_{2}(32)=x+2

lo g_{2} (32) = x + 2

7(x-2)+3=4(2x-6)-2

7 (x - 2) + 3 = 4 (2 x - 6) - 2