(x-3)(x-3)-6(x²+x-1)=

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(x-3)(x-3)-6(x²+x-1)=
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(x-3)(x-3)-6(x²+x-1)=
(x-3)(x-3)-6(x²+x-1)=

(x-3)(x-3)-6(x²+x-1)=