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人気のある代数 >

5x^4-6x^2=0

解

5 x^{4} - 6 x^{2} = 0

解

x = \frac{6}{5}, x = - \frac{6}{5}, x = 0

+1

十進法表記

x = 1.09544 \dots, x = - 1.09544 \dots, x = 0

解答ステップ

5 x^{4} - 6 x^{2} = 0

equationを

u = x^{2}

と以下で書き換える:

u^{2} = x^{4}

5 u^{2} - 6 u = 0

解く

5 u^{2} - 6 u = 0 : u = \frac{6}{5}, u = 0

u = \frac{6}{5}, u = 0

再び

u = x^{2}

に置き換えて以下を解く:

x

解く

x^{2} = \frac{6}{5} : x = \frac{6}{5}, x = - \frac{6}{5}

解く

x^{2} = 0 : x = 0

解答は

x = \frac{6}{5}, x = - \frac{6}{5}, x = 0

グラフ

人気の例

4 x^{3} - 18 x^{2} = 0

2 y^{3} + 6 y = 1

5 x - 17 = - x^{7}

2x^4-4x^3=-2x^2

2 x^{4} - 4 x^{3} = - 2 x^{2}

roo t s x^{3}