(x+2)—x(3x+1)^2+(2x+1)(4x^2-2x+1)=42“^”就代表次方 ^2 代表平方 打不来平方
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(x+2)—x(3x+1)^2+(2x+1)(4x^2-2x+1)=42“^”就代表次方^2代表平方打不来平方(x+2)—x(3x+1)^2+(2x+1)(4x^2-2x+1)=42“^”就代表次方^
(x+2)—x(3x+1)^2+(2x+1)(4x^2-2x+1)=42“^”就代表次方 ^2 代表平方 打不来平方
(x+2)—x(3x+1)^2+(2x+1)(4x^2-2x+1)=42
“^”就代表次方 ^2 代表平方 打不来平方
(x+2)—x(3x+1)^2+(2x+1)(4x^2-2x+1)=42“^”就代表次方 ^2 代表平方 打不来平方
(x+2)^3—x(3x+1)^2+(2x+1)(4x^2-2x+1)=42
x^3+6x^2+12x+8-(9x^3+6x^2+x)+8x^3+1=42
11x+9=42
11x=33
x=3
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