解方程x²-x+1=(x²+x+1)(x²+2x+4)
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解方程x²-x+1=(x²+x+1)(x²+2x+4)
解方程x²-x+1=(x²+x+1)(x²+2x+4)
解方程x²-x+1=(x²+x+1)(x²+2x+4)
x²-x+1=(x²+x+1)(x²+2x+4) (x²+x+1)(x²+2x+4)-(x²-x+1)=0 (x²+x+1)(x²+2x+1+3)-(x²-x+1)=0 (x²+x+1)(x²+2x+1)+3(x².