раскройте скобки 1)-5x(x^3-2x^2-3x+5) 2)xy(3x^2-2y^2) 3)3x-4xy-x(2y-5)
-15x^4+10x^3+15x^2-25x=15x^4-10x^3-15x^2+25x
3x^3y-2xy^3
3x-4xy-2xy+5x=8x-6xy
1.-5x^4 + 10x^3 + 15x - 25x = -5x^4 + 10x^3 - 10x;
2.3x^3y - 2xy^3;
3. 3x - 4xy - 2xy + 5x = 8x - 6xy.
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Answers & Comments
-15x^4+10x^3+15x^2-25x=15x^4-10x^3-15x^2+25x
3x^3y-2xy^3
3x-4xy-2xy+5x=8x-6xy
1.-5x^4 + 10x^3 + 15x - 25x = -5x^4 + 10x^3 - 10x;
2.3x^3y - 2xy^3;
3. 3x - 4xy - 2xy + 5x = 8x - 6xy.