四川达州开江县:(√6+√3+√2-1)²-(√6+√3-√2+1)².

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(√6+√3+√2-1)²-(√6+√3-√2+1)²
=(√6+√3)²+2*(√6+√3)(√2-1)+(√2-1)²-(√6+√3)²+2*(√6+√3)(√2-1)-(√2-1)²
=4*(√6+√3)(√2-1)
=4*√3*(√2+1)(√2-1)
=4*√3*(2-1)
=4√3

分解因式:
原式=(√6+√3+√2-1+√6+√3-√2+1)[√6+√3+√2-1-(√6+√3-√2+1)]=4*(√6+√3)(√2-1)=4√3

4√3

4√3