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 >

16=((-1.64+x)^2(0.3^2))/((0.5^2))

解答

16 = \frac{( - 1.64 + x ) ^{2} ( 0. 3 ^{2} )}{( 0. 5 ^{2} )}

解答

x = 8.30666 \dots, x = - 5.02666 \dots

求解步骤

16 = \frac{( - 1.64 + x ) ^{2} ( 0. 3 ^{2} )}{( 0. 5 ^{2} )}

交换两边

\frac{( - 1.64 + x ) ^{2} ( 0. 3 ^{2} )}{( 0. 5 ^{2} )} = 16

在两边乘以

0. 5^{2}

0.09 (- 1.64 + x)^{2} = 4

两边除以

0.09

(- 1.64 + x)^{2} = 44.44444 \dots

对于

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

解为

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

解

- 1.64 + x = 44.44444 \dots : x = 8.30666 \dots

解

- 1.64 + x = - 44.44444 \dots : x = - 5.02666 \dots

二次方程组的解是:

x = 8.30666 \dots, x = - 5.02666 \dots

作图

流行的例子

|(8x-1)/(3x+2)|-7=0

\frac{8 x - 1}{3 x + 2} - 7 = 0

(2-x)/3+(1-x)/6 =(4x-5)/2

\frac{2 - x}{3} + \frac{1 - x}{6} = \frac{4 x - 5}{2}

22/8 <(y+7)/4 < 27/8

\frac{22}{8} < \frac{y + 7}{4} < \frac{27}{8}

因式分解 10d^2-6d+35d-21

f a c t or 10 d^{2} - 6 d + 35 d - 21

x^{2} \geq 13 x