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受欢迎的代数 >

x^2+1.8x10^{-4}x-4.5x10^{-6}=0

解答

x^{2} + 1.8 x 1 0^{- 4} x - 4.5 x 1 0^{- 6} = 0

解答

x = \frac{0.000009}{2.00036}, x = 0

+1

十进制

x = 4.49919 E - 6, x = 0

求解步骤

x^{2} + 1.8 x \cdot 1 0^{- 4} x - 4.5 x \cdot 1 0^{- 6} = 0

展开

x^{2} + 1.8 x \cdot 1 0^{- 4} x - 4.5 x \cdot 1 0^{- 6} : 1.00018 x^{2} - 0.0000045 x

1.00018 x^{2} - 0.0000045 x = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 0.0000045 ) \pm ( - 0.0000045 ) ^{2} - 4 \cdot 1.00018 \cdot 0}{2 \cdot 1.00018}

(- 0.0000045)^{2} - 4 \cdot 1.00018 \cdot 0 = 0.0000045

x_{1, 2} = \frac{- ( - 0.0000045 ) \pm 0.0000045}{2 \cdot 1.00018}

将解分隔开

x_{1} = \frac{- ( - 0.0000045 ) + 0.0000045}{2 \cdot 1.00018}, x_{2} = \frac{- ( - 0.0000045 ) - 0.0000045}{2 \cdot 1.00018}

x = \frac{- ( - 0.0000045 ) + 0.0000045}{2 \cdot 1.00018} : \frac{0.000009}{2.00036}

x = \frac{- ( - 0.0000045 ) - 0.0000045}{2 \cdot 1.00018} : 0

二次方程组的解是:

x = \frac{0.000009}{2.00036}, x = 0

作图

流行的例子

x^2-(sqrt(3)-1)*x-sqrt(3)=0

x^{2} - (3 - 1) \cdot x - 3 = 0

x^2-3=((x-3))/2

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x^{2} - x - b = 0

solvefor x,1^2+x^2=c*p^2

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