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人気のある代数 >

x^4-27x^2+176=0

解

x^{4} - 27 x^{2} + 176 = 0

解

x = 4, x = - 4, x = 11, x = - 11

+1

十進法表記

x = 4, x = - 4, x = 3.31662 \dots, x = - 3.31662 \dots

解答ステップ

x^{4} - 27 x^{2} + 176 = 0

equationを

u = x^{2}

と以下で書き換える:

u^{2} = x^{4}

u^{2} - 27 u + 176 = 0

解く

u^{2} - 27 u + 176 = 0 : u = 16, u = 11

u = 16, u = 11

再び

u = x^{2}

に置き換えて以下を解く:

x

解く

x^{2} = 16 : x = 4, x = - 4

解く

x^{2} = 11 : x = 11, x = - 11

解答は

x = 4, x = - 4, x = 11, x = - 11

グラフ

人気の例

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