Розкрийте дужки:
1) (х–у)–5;
2) (а + b–с)·4;
3) (2х–y)·(–3);
4) –2(b + 2с – 3m);
5) (с–8b + 6d)·(–1,2);
6) –0,6x(–5 + 3m–1,4n);
7) –p(–x+2y–4,6);
1) (х–у)–5;
2) (а + b–с)·4;
3) (2х–y)·(–3);
4) –2(b + 2с – 3m);
5) (с–8b + 6d)·(–1,2);
6) –0,6x(–5 + 3m–1,4n);
7) –p(–x+2y–4,6);
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Ответ:
1) (х–у)–5=х-у-5
2) (а + b–с)*4=4а+4b-4c
3) (2х–y)*(–3)= -6x+3y
4) –2(b + 2с – 3m)= -2b-4c+6m
5) (с–8b + 6d)*(–1,2)= -1,2c+9,6b-7,2d
6) –0,6x(–5 + 3m–1,4n)= 3х-1,8m+0,84n
7) –p(–x+2y–4,6)= px-2py+4,6p