Question

1)a(b+c)+(3b+3c) 2)(5a-5b)-(ac-bc)

Answer 1

Відповідь:

1) ab+ac+3b+3c

2) 5a-5b-ac+bc

Answer 2

Let's simplify the given expressions:

1. a(b+c) + (3b+3c)

To simplify this expression, we'll distribute the 'a' to both terms inside the first parentheses and simplify the second parentheses separately. Then we'll combine like terms.

a(b+c) + (3b+3c) = ab + ac + 3b + 3c

Now, let's combine like terms:

ab + ac + 3b + 3c = (ab + ac) + (3b + 3c) = ab + ac + 3(b + c)

So, the simplified expression is: ab + ac + 3(b + c)

2. (5a-5b) - (ac-bc)

We'll distribute the negative sign to the second parentheses and then combine like terms.

(5a - 5b) - (ac - bc) = 5a - 5b - ac + bc

This is the simplified form of the expression: 5a - 5b - ac + bc.