已知X=根号3-2（2在根号外）,求X的4次方加上四倍的X的3次方减3倍的X的平方减4X减4的值

(x+2)^2=3 => x^2+4x+4=3 => x^2+4x+1=0
x^4+4x^3-3x^2-4x-4
=x^2(x^2+4x+1)-4x^2-4x-4
=x^2(x^2+4x+1)-4(x^2+4x+1)+12x
=12x=12根号3-24