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受欢迎的代数 >

25x^2-16x=0

解答

25 x^{2} - 16 x = 0

解答

x = \frac{16}{25}, x = 0

+1

十进制

x = 0.64, x = 0

求解步骤

25 x^{2} - 16 x = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 16 ) \pm ( - 16 ) ^{2} - 4 \cdot 25 \cdot 0}{2 \cdot 25}

(- 16)^{2} - 4 \cdot 25 \cdot 0 = 16

x_{1, 2} = \frac{- ( - 16 ) \pm 16}{2 \cdot 25}

将解分隔开

x_{1} = \frac{- ( - 16 ) + 16}{2 \cdot 25}, x_{2} = \frac{- ( - 16 ) - 16}{2 \cdot 25}

x = \frac{- ( - 16 ) + 16}{2 \cdot 25} : \frac{16}{25}

x = \frac{- ( - 16 ) - 16}{2 \cdot 25} : 0

二次方程组的解是:

x = \frac{16}{25}, x = 0

作图

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