Преобразуйте в многочлен выражение
1) (-x-2)(2x²-3)
2) (3a²-5b)(5a²+b)
3) (y+3)(y²-2y+5)
4) (m+3n)(m²-6mn-n²)
5)2x(3x-1)(2x+5)
6) -3x²(2-3x)(3x²+11X)
1) (-x-2)(2x²-3)
2) (3a²-5b)(5a²+b)
3) (y+3)(y²-2y+5)
4) (m+3n)(m²-6mn-n²)
5)2x(3x-1)(2x+5)
6) -3x²(2-3x)(3x²+11X)
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Answers & Comments
2) 15a^4+3a^2b-25a^2b-5b^2=15a^4-22a^2b-5b^2
3) y^3-2y^2+5y+3y^2-6y+15=y^3+y^2-y+15
4)m^3-6m^2n-n^2m+3nm^2-18mn^2-3n^2=m^3-3m^2n-19mn^2-3n^3
5) 2x(6x^2+15x-2x-5)=12x^3+26x^2-10x
6) -3x^2(6x^2+22x-9x^3-33x^2)=-18x^4+33x^3+27x^5