Solve the equation x & # 178; - x + 1 = (X & # 178; + X + 1) (X & # 178; + 2x + 4)

Solve the equation x & # 178; - x + 1 = (X & # 178; + X + 1) (X & # 178; + 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.

Calculation: 2x [(X & # 178;) - 1 / 2x + 4]

Original formula = 2x & # 179; - X & # 178; + 8x

A simple numerical operation program box, if the output value is 27, then the input value is - input x → - () and # 178; → - 3
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Calculation: (X & # 178; - 2x + 3) * (X & # 178; + 2x + 3) is an important process

(x²-2x+3)*(x²+2x+3)
=[(x²+3)+2x]*[(x²+3)-2x]
=(x²+3)²-4X²
=X4+6X²+9-4X²
=X4+2X²+9