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人気のある代数 >

m^4-13m^2+36=0

解

m^{4} - 13 m^{2} + 36 = 0

解

m = 3, m = - 3, m = 2, m = - 2

解答ステップ

m^{4} - 13 m^{2} + 36 = 0

equationを

u = m^{2}

と以下で書き換える:

u^{2} = m^{4}

u^{2} - 13 u + 36 = 0

解く

u^{2} - 13 u + 36 = 0 : u = 9, u = 4

u = 9, u = 4

再び

u = m^{2}

に置き換えて以下を解く:

m

解く

m^{2} = 9 : m = 3, m = - 3

解く

m^{2} = 4 : m = 2, m = - 2

解答は

m = 3, m = - 3, m = 2, m = - 2

グラフ

人気の例

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4 c^{3} + 4 c^{2} - 224 c = 0

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