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受欢迎的代数 >

9m^2-40m^2+16=0

解答

9 m^{2} - 40 m^{2} + 16 = 0

解答

m = \frac{4}{31}, m = - \frac{4}{31}

+1

十进制

m = 0.71842 \dots, m = - 0.71842 \dots

求解步骤

9 m^{2} - 40 m^{2} + 16 = 0

将

16

到右边

9 m^{2} - 40 m^{2} = - 16

同类项相加:

9 m^{2} - 40 m^{2} = - 31 m^{2}

- 31 m^{2} = - 16

两边除以

- 31

m^{2} = \frac{16}{31}

对于

x^{2} = f (a)

解为

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

m = \frac{16}{31}, m = - \frac{16}{31}

\frac{16}{31} = \frac{4}{31}

- \frac{16}{31} = - \frac{4}{31}

m = \frac{4}{31}, m = - \frac{4}{31}

作图

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s im pl i f y \frac{64}{36}

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s im pl i f y ln (x + 1) - ln (x - 1)

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