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人気のある代数 >

a*x^2-8x+4=0

解

a \cdot x^{2} - 8 x + 4 = 0

解

x = \frac{2 ( - a + 4 + 2 )}{a}, x = \frac{2 ( - - a + 4 + 2 )}{a}; a \neq = 0

解答ステップ

a x^{2} - 8 x + 4 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 8 ) \pm ( - 8 ) ^{2} - 4 a \cdot 4}{2 a}

簡素化

(- 8)^{2} - 4 a \cdot 4 : 4 4 - a

x_{1, 2} = \frac{- ( - 8 ) \pm 4 4 - a}{2 a}; a \neq = 0

解を分離する

x_{1} = \frac{- ( - 8 ) + 4 4 - a}{2 a}, x_{2} = \frac{- ( - 8 ) - 4 4 - a}{2 a}

x = \frac{- ( - 8 ) + 4 4 - a}{2 a} : \frac{2 ( - a + 4 + 2 )}{a}

x = \frac{- ( - 8 ) - 4 4 - a}{2 a} : \frac{2 ( - - a + 4 + 2 )}{a}

二次equationの解:

x = \frac{2 ( - a + 4 + 2 )}{a}, x = \frac{2 ( - - a + 4 + 2 )}{a}; a \neq = 0

グラフ

人気の例

solvefor x,x^2y^2+x^2+y^2=3736

so l v e f or x, x^{2} y^{2} + x^{2} + y^{2} = 3736

x^{2} = 4 \frac{x}{5} + \frac{1}{5}

(m-1)*x^2-2(m-1)x+1=0

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

solvefor x,y^2=((9x^2))/(36)

so l v e f or x, y^{2} = \frac{( 9 x ^{2} )}{36}

solvefor x,w=x^2-25

so l v e f or x, w = x^{2} - 25