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 >

(w+5)^2-72=0

解答

(w + 5)^{2} - 72 = 0

解答

w = 62 - 5, w = - 62 - 5

+1

十进制

w = 3.48528 \dots, w = - 13.48528 \dots

求解步骤

(w + 5)^{2} - 72 = 0

将

72

到右边

(w + 5)^{2} = 72

对于

(g (x))^{2} = f (a)

解为

g (x) = f (a), - f (a)

解

w + 5 = 72 : w = 62 - 5

解

w + 5 = - 72 : w = - 62 - 5

二次方程组的解是:

w = 62 - 5, w = - 62 - 5

作图

流行的例子

1/(x+1)+1/(x+2)-(4x)/(x^2+3x+2)<0

\frac{1}{x + 1} + \frac{1}{x + 2} - \frac{4 x}{x ^{2} + 3 x + 2} < 0

(-5+sqrt((5)^2-4(3)(-2)))/(2(3))=x

\frac{- 5 + ( 5 ) ^{2} - 4 ( 3 ) ( - 2 )}{2 ( 3 )} = x

3 x + 2 < 2 x - 4

2 r^{2} + 5 r - 3 = 0

化简 (7x-3y)(2x-3y)-(3y-2x)^2

s im pl i f y (7 x - 3 y) (2 x - 3 y) - (3 y - 2 x)^{2}