Question

Раскройте скобки a - ( b + c)+(d - c - f)
a - ( - b - c) - d + (c + f)
a - ( - b + c) - (d + c - f)
a - ( - b + c) - (d + c - f)

Answer 1

1. а-b-c+d+c+f
2.a+b+c-d+c+f
3.a+b-c-d-c+c
4.a+b-c-d-c+f