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受欢迎的代数 >

4x^2+4=5

解答

4 x^{2} + 4 = 5

解答

x = \frac{1}{2}, x = - \frac{1}{2}

+1

十进制

x = 0.5, x = - 0.5

求解步骤

4 x^{2} + 4 = 5

将

4

到右边

4 x^{2} = 1

两边除以

4

x^{2} = \frac{1}{4}

对于

x^{2} = f (a)

解为

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

x = \frac{1}{4}, x = - \frac{1}{4}

\frac{1}{4} = \frac{1}{2}

- \frac{1}{4} = - \frac{1}{2}

x = \frac{1}{2}, x = - \frac{1}{2}

作图

流行的例子

4 x^{2} + 4 = x

x^2+x^2+(x-2)^2=4

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

3 = - 3 x^{2} + 2

x^{2} - 32 x + 60 = 0

4x^2+25-20x+4x^2=17

4 x^{2} + 25 - 20 x + 4 x^{2} = 17