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受欢迎的代数 >

x^2-6x=-x^2+6x

解答

x^{2} - 6 x = - x^{2} + 6 x

解答

x = 6, x = 0

求解步骤

x^{2} - 6 x = - x^{2} + 6 x

将

6 x

para o lado esquerdo

x^{2} - 12 x = - x^{2}

将

x^{2}

para o lado esquerdo

2 x^{2} - 12 x = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 12 ) \pm ( - 12 ) ^{2} - 4 \cdot 2 \cdot 0}{2 \cdot 2}

(- 12)^{2} - 4 \cdot 2 \cdot 0 = 12

x_{1, 2} = \frac{- ( - 12 ) \pm 12}{2 \cdot 2}

将解分隔开

x_{1} = \frac{- ( - 12 ) + 12}{2 \cdot 2}, x_{2} = \frac{- ( - 12 ) - 12}{2 \cdot 2}

x = \frac{- ( - 12 ) + 12}{2 \cdot 2} : 6

x = \frac{- ( - 12 ) - 12}{2 \cdot 2} : 0

二次方程组的解是:

x = 6, x = 0

作图

流行的例子

c^{2} = 15

x^{2} - \frac{2}{3} = 0

4x^2+60x+200-264=0

4 x^{2} + 60 x + 200 - 264 = 0

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3 x^{2} + 8 x + 9 = 0