Хелп! ! -21b^3-14b^2 mn+3m-n^2-3n 81a^2-b^2 3y^3-36y^2+108y - вопрос №21314232381223336210822535155 от eleonoravoronina 09.01.2021 13:33

Question

Алгебра: Хелп! ! -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

eleonoravoronina · Answer

-7b²(3b+2)m(n+3)-n(n+3)=(n+3)(m-n)(9a-b)(9a+b)3y(y²-12y+36)=3y(y-6)²(x+2-7)(x+2+7)=(x-5)(x+9)(182+62)(182²-182*62+62²)/244 - 182*62=244(182²-182*62+62²)/244 - 182*62=182²-182*62+62² - 182*62=182²-2*182*62+62²=(182-62)²=120²=14400...