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人気のある代数 >

solvefor x,x^2+y^2-8x+27-8=0

解

解く

x, x^{2} + y^{2} - 8 x + 27 - 8 = 0

解

x = 4 + - y^{2} - 3, x = 4 - - y^{2} - 3

解答ステップ

x^{2} + y^{2} - 8 x + 27 - 8 = 0

拡張

x^{2} + y^{2} - 8 x + 27 - 8 : x^{2} - 8 x + y^{2} + 19

x^{2} - 8 x + y^{2} + 19 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 8 ) \pm ( - 8 ) ^{2} - 4 \cdot 1 \cdot ( y ^{2} + 19 )}{2 \cdot 1}

簡素化

(- 8)^{2} - 4 \cdot 1 \cdot (y^{2} + 19) : 2 - y^{2} - 3

x_{1, 2} = \frac{- ( - 8 ) \pm 2 - y ^{2} - 3}{2 \cdot 1}

解を分離する

x_{1} = \frac{- ( - 8 ) + 2 - y ^{2} - 3}{2 \cdot 1}, x_{2} = \frac{- ( - 8 ) - 2 - y ^{2} - 3}{2 \cdot 1}

x = \frac{- ( - 8 ) + 2 - y ^{2} - 3}{2 \cdot 1} : 4 + - y^{2} - 3

x = \frac{- ( - 8 ) - 2 - y ^{2} - 3}{2 \cdot 1} : 4 - - y^{2} - 3

二次equationの解:

x = 4 + - y^{2} - 3, x = 4 - - y^{2} - 3

グラフ

人気の例

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

x^{2} + x - 6 = 6

solvefor a,x^2+(y-a)^2=25

so l v e f or a, x^{2} + (y - a)^{2} = 25

solvefor x,x^2-4x=-4

so l v e f or x, x^{2} - 4 x = - 4

12 x^{2} - 12 x - 2 = 0