(3х-3)(3х+3) -3х(3х+3)=9x^2-3^2-9x^2-9x=9x^2-9-9x^3=-9x-9
Ответ: -9x-9.
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Verified answer
[tex] - 9x - 9
Verified answer
(3х-3)(3х+3) -3х(3х+3)=9x^2-3^2-9x^2-9x=9x^2-9-9x^3=-9x-9
Ответ: -9x-9.