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受欢迎的代数 >

solvefor x,445x^2-13.402x-11.392=0

解答

x, 445 x^{2} - 13.402 x - 11.392 = 0

解答

x = \frac{13402 + 20457373604}{890000}, x = \frac{13402 - 20457373604}{890000}

+1

十进制

x = 0.17576 \dots, x = - 0.14564 \dots

求解步骤

445 x^{2} - 13.402 x - 11.392 = 0

在两边乘以

1000

445000 x^{2} - 13402 x - 11392 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 13402 ) \pm ( - 13402 ) ^{2} - 4 \cdot 445000 ( - 11392 )}{2 \cdot 445000}

(- 13402)^{2} - 4 \cdot 445000 (- 11392) = 20457373604

x_{1, 2} = \frac{- ( - 13402 ) \pm 20457373604}{2 \cdot 445000}

将解分隔开

x_{1} = \frac{- ( - 13402 ) + 20457373604}{2 \cdot 445000}, x_{2} = \frac{- ( - 13402 ) - 20457373604}{2 \cdot 445000}

x = \frac{- ( - 13402 ) + 20457373604}{2 \cdot 445000} : \frac{13402 + 20457373604}{890000}

x = \frac{- ( - 13402 ) - 20457373604}{2 \cdot 445000} : \frac{13402 - 20457373604}{890000}

二次方程组的解是:

x = \frac{13402 + 20457373604}{890000}, x = \frac{13402 - 20457373604}{890000}

作图

流行的例子

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