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受欢迎的代数 >

16(x^2-6)+5=-10

解答

16 (x^{2} - 6) + 5 = - 10

解答

x = \frac{9}{4}, x = - \frac{9}{4}

+1

十进制

x = 2.25, x = - 2.25

求解步骤

16 (x^{2} - 6) + 5 = - 10

将

5

到右边

16 (x^{2} - 6) = - 15

两边除以

16

x^{2} - 6 = - \frac{15}{16}

将

6

到右边

x^{2} = \frac{81}{16}

对于

x^{2} = f (a)

解为

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

x = \frac{81}{16}, x = - \frac{81}{16}

\frac{81}{16} = \frac{9}{4}

- \frac{81}{16} = - \frac{9}{4}

x = \frac{9}{4}, x = - \frac{9}{4}

作图

流行的例子

x = 2 - x^{2}

12x^2-24x-65=115

12 x^{2} - 24 x - 65 = 115

(x^{2} - x + 1) = 0

t^{2} - 2 t + 1 = 0

5x^2-100x+255=0

5 x^{2} - 100 x + 255 = 0