Question

3a(a+b+c)-3b(a-b-c)-3c(a+b-c)​

Answer 1

Объяснение:

3а²+3аb+3ac -3ab+3b²+3bc-3ac-3bc+3c²= 3a²+3b²+3c²

Answer 2

Объяснение:

скорее всего это верное решение

Answer 3

To simplify the expression 3a(a+b+c) - 3b(a-b-c) - 3c(a+b-c), you can distribute the constants and variables and then combine like terms:

1. Distribute the constants and variables in each term:

   = 3a^2 + 3ab + 3ac - 3ab + 3b^2 + 3bc + 3ac - 3bc - 3c^2

2. Now, combine like terms. Notice that the terms 3ab and -3ab, 3ac and 3ac, 3bc and -3bc cancel each other out:

   = 3a^2 + 3ac - 3c^2

So, the simplified expression is 3a^2 + 3ac - 3c^2.