Question

Раскройте скобки:
1) 4(5x+9y-z);
2) -6(-a-8b + 7c);
3) (6p-n-4m)*(-1,6);
4) (-2,6a-b+1,4c)*(-m)
5) -0,7n(7a-2,1+5k)

Answer 1

1)20х+36у-4z
2)6a+48b-42c
3)-9,6p+1.6n+6.4m
4)2,6ma+mb-1.4mc
5)-4.9na+1.47n-3.5nk