Question

1) 4•(3-х). 2) 2•(2а+5). 3) 14•а:5. 4) 15/2:(17-12).

Answer 1

Ответ:

Пошаговое объяснение:

1) 4*(3-х)= 12-4х

2) 2*(2а+5)=4а+10

3) 14*а:5=14а/5

4) 15/2:(17-12)=15/2:5= 3/2=1,5

Answer 2

Let's simplify the expressions you provided:

1. 4 • (3 - x): To simplify this expression, we distribute the 4 to both terms inside the parentheses: 4 • 3 - 4 • x = 12 - 4x

2. 2 • (2a + 5): Similarly, we distribute the 2 to both terms inside the parentheses: 2 • 2a + 2 • 5 = 4a + 10

3. 14 • a : 5: To simplify this expression, we divide 14a by 5: 14a ÷ 5 = (14/5) • a = 2.8a

4. 15/2 : (17 - 12): First, we simplify the expression inside the parentheses: 17 - 12 = 5 Now, we can divide 15/2 by 5: (15/2) ÷ 5 = (15/2) • (1/5) = 15/10 = 3/2 or 1.5

So, the simplified expressions are:

1. 12 - 4x
2. 4a + 10
3. 2.8a
4. 3/2 or 1.5