хелп! срочно!
-21b^3-14b^2
mn+3m-n^2-3n
81a^2-b^2
3y^3-36y^2+108y
(x+2)^2-49=0
182^3+62^3 -182*62=
244
-21b^3-14b^2
mn+3m-n^2-3n
81a^2-b^2
3y^3-36y^2+108y
(x+2)^2-49=0
182^3+62^3 -182*62=
244
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