(-1/3xy²z)²·(-1/2xyz²)³·(-6x²y²)²(x-2)(x²+4)(x+2)(a-b+1)²-(b-1)²

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(-1/3xy²z)²·(-1/2xyz²)³·(-6x²y²)²(x-2)(x²+4)(x+2)(a-b+1)²-(b-1)²

(-1/3xy²z)²·(-1/2xyz²)³·(-6x²y²)²(x-2)(x²+4)(x+2)(a-b+1)²-(b-1)²
(-1/3xy²z)²·(-1/2xyz²)³·(-6x²y²)²
(x-2)(x²+4)(x+2)
(a-b+1)²-(b-1)²

(-1/3xy²z)²·(-1/2xyz²)³·(-6x²y²)²(x-2)(x²+4)(x+2)(a-b+1)²-(b-1)²
(-1/3xy²z)²·(-1/2xyz²)³·(-6x²y\x08)²=1/9x^2y^4z^2*-1/8x^3y^3z^6*36x^4y^4=-1/2x^9y^11z^8
(x-2)(x²+4)(x+2)=(x^2-4)(x^2+4)=x^4-16
(a-b+1)²-(b-1)²=a^2-2a(b-1)+(b-1)^2-(b-1)^2=a^2-2a(b-1)=a^2-2ab+2a

‍x^9y^11z^8

x^4-16

a^2-2ab-2a

(^表示乘方)