x的四次方加x的四次方分之一

∵x²-3x+1=0∴x²+1=3x(x²+1)×1/x=3x×1/x∴x+(1/x)=3∴[x+(1/x)]²=3²x²+2×x×1/x+

x^2-3x+1=0x-3+1/x=0x+1/x=3(x+1/x)^2=9x^2+2+1/x^2=9x^2+1/x^2=7(x^2+1/x^2)^2=49x^4+2+1/x^4=49x^4+1/x^4

x^2-13x+1=0.x≠0.x-13+1/x=0,x+1/x=13.(x+1/x)^2=169x^2+1/x^2=169-2=167(x^2+1/x^2)^2=167^2.x^4+1/^4=167

X²＋2X－1＝0两边同时除以x得x+2-1/x=0x-1/x=-2两边同时平方得x²+1/x²=6两边同时平方得x4+1/x4=34

你确定你没抄错题吗?

x²+3x+1=0除以x得x+3+1/x=0x+1/x=-3∴(x+1/x)²=x²+2+1/x²=9即x²+1/x²=9-2=7∴﹙x&#

(1/x+1/y)^2=251/x^2+2/xy+1/y^2=251/x^2+1/y^2=27(1/x^2+1/y^2)^2=7291/x^4+1/y^4+2/x^2y^2=7291/x^4+1/y^

x^2-5x+1=0显然x不是0,两边除以x有x-5+1/x=0也就是x+1/x=5所以x^2+1/(x^2)=(x+1/x)^2-2=23x^4+1/(x^4)=(x^2+1/(x^2))^2-2=

∵x²+x+1=0两边除以x可得x+1+1/x=0x+1/x=-1两边平方可得x²+1/x²+2=1x²+1/x²=-1两边再平方可得x^4+1/x^

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x-1/x=3(x-1/x)2=x2-2+1/x2=9x2+1/x2=11(x+1/x)2=11+2=13x4-1/x4=(x2+1/x2)(x2-1/x2)=11(x+1/x)(x-1/x)=33(

x²-4x+1=0两边同时除以xx-4+1/x=0x+1/x=4两边同时平方x²+2+1/x²=16x²+1/x²=14两边同时平方x^4+2+1/x

x^4+4=(x^2)^2+2^2+4x^2-4x^2=(x^2+2)^2-4x^2=(x^2+2)^2-(2x)^2=(x^2+2x+2)(x^2+2-2x)

x^4+y^4=x^4+2x^2y^2+y^4-2x^2y^2=(x^2+y^2)^2-2x^2y^2=(x^2+y^2+√2*xy)(x^2+y^2-√2*xy)

x-1/x=3两边平方得：x²-2+1/x²=3²x²+1/x²=9+2x²+1/x²=11两边平方得：x^4+1/x^4+2=1

x^2+3x+1=0x^2+1/x^2=((-3x-1)^1+1)/(-3x-1)=(9x^2+6x+2)/(-3x-1)=(-27x-9+6x+2)/(-3x-1)=7x^4+1/x^4=(x^2+

x^4+2x+1=x^4-x²+x²+2x+1=x²(x-1)(x+1)+(x+1)²=(x+1)(x³-x²+x+1)

您好：x+1/x=5(x+1/x)平方=5平方x平方+2+1/x平方=25x平方+1/x平方=23(x平方+1/x平方)平方=23平方x的4次方+2+1/x的4次方=529x的4次方+1/x的4次方=

（x加x分之一）的二次方是x的二次方加x的二次方分之1加2等于9,x的二次方加x的二次方分之1是7,（x的二次方加x的二次方分之1）的二次方是x的四次方加x的四次方分之1加2等于49,x的四次方加x的

x^4+4=(x^2)^2+2^2+4x^2-4x^2=(x^2+2)^2-4x^2=(x^2+2)^2-(2x)^2=(x^2+2x+2)(x^2+2-2x)