x³-(√3+4)x²+(4√3+3)x-3√3=0
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![x³-(√3+4)x²+(4√3+3)x-3√3=0](/uploads/image/z/5258295-63-5.jpg?t=x%26%23179%3B-%EF%BC%88%E2%88%9A3%EF%BC%8B4%EF%BC%89x%26%23178%3B%2B%284%E2%88%9A3%2B3%29x-3%E2%88%9A3%3D0)
x³-(√3+4)x²+(4√3+3)x-3√3=0
x³-(√3+4)x²+(4√3+3)x-3√3=0
x³-(√3+4)x²+(4√3+3)x-3√3=0
x³-(√3+4)x²+(4√3+3)x-3√3=0
x³-(√3+4)x²+4√3x+3x-3√3=0
x(x²-(√3+4)x+4√3)+3(x-√3)=0
x(x-4)(x-√3)+3(x-√3)=0
(x²-4x+3)(x-√3)=0
(x-3)(x-1)(x-√3)=0
x1=3 x2=1 x3=√3