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 >

7.76=pix^212.7

解答

7.76 = π \cdot x^{2} \cdot 12.7

解答

x = \frac{2 97}{635 π}, x = - \frac{2 97}{635 π}

+1

十进制

x = 0.44101 \dots, x = - 0.44101 \dots

求解步骤

7.76 = π x^{2} \cdot 12.7

交换两边

π x^{2} \cdot 12.7 = 7.76

在两边乘以

100

1270 π x^{2} = 776

两边除以

1270 π

x^{2} = \frac{388}{635 π}

对于

x^{2} = f (a)

解为

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

x = \frac{388}{635 π}, x = - \frac{388}{635 π}

\frac{388}{635 π} = \frac{2 97}{635 π}

- \frac{388}{635 π} = - \frac{2 97}{635 π}

x = \frac{2 97}{635 π}, x = - \frac{2 97}{635 π}

作图

流行的例子

因式分解 8(2p+q)^2-10(2p+q)+3

f a c t or 8 (2 p + q)^{2} - 10 (2 p + q) + 3

x (x - 4) \leq 0

2 c \geq 8

因式分解 2ac-5bd-2a+2ad+5b-5bc

f a c t or 2 a c - 5 b d - 2 a + 2 a d + 5 b - 5 b c

化简 (32x^{30}y^{-20})^{-3/5}

s im pl i f y (32 x^{30} y^{- 20})^{- \frac{3}{5}}