x^2=22

解答

x^{2} = 22

x = 22, x = - 22

十进制表示法

x = 4.69041 \dots, x = - 4.69041 \dots

求解步骤

x^{2} = 22

对于

x^{2} = f (a)

解为

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

x = 22, x = - 22

lo g_{2} (4 x - 6) > lo g_{2} (2 x + 8)

(x - 2)^{2} = x

20 < \frac{z}{4}

f = - (\frac{1}{2})^{2} + 3 (\frac{1}{2}) + 1

x^{2} - 289