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умница7777
@умница7777
August 2022
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Раскройте скобки:
1)3b(a-b);
2)-5(0,8c-0,9d);
3)-1/9(3x-4y);
4)7m(m-n-p);
5)-0,3c(-5a-3c-2d);
6)5/12(-4x-6y-3).
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Answers & Comments
ST0002
1) 3b(a-b) = 3ab -3b^2
2) -5(0.8c-0.9d) = -4c+4.5d
3) -1/9(3x-4y) = -1/3+4/9y
4) 7m(m-n-p) = 7m^2-7mn-7mp
5) -0.3c(-5a-3c-2d) = 1.5ca+0.9c^2+0.6cd
6) 5/12(-4x-6y-3) = -5/3x-5/2y-5/4
4 votes
Thanks 13
NostereaL
1) 3ab - 3b^2;
2) -4c + 4,5d;;
3) -1/3*x + 4/9*y;
4) 7m^2 - 7mn - 7mp;
5) 1,5ac + 0,9c^2 + 0,6cd;
6) -5/3*x - 2,5y - 1,25
0 votes
Thanks 1
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Answers & Comments
2) -5(0.8c-0.9d) = -4c+4.5d
3) -1/9(3x-4y) = -1/3+4/9y
4) 7m(m-n-p) = 7m^2-7mn-7mp
5) -0.3c(-5a-3c-2d) = 1.5ca+0.9c^2+0.6cd
6) 5/12(-4x-6y-3) = -5/3x-5/2y-5/4
2) -4c + 4,5d;;
3) -1/3*x + 4/9*y;
4) 7m^2 - 7mn - 7mp;
5) 1,5ac + 0,9c^2 + 0,6cd;
6) -5/3*x - 2,5y - 1,25