Question

Раскрой скобки : 1)4(а+2); (p-q)*9; 5(2m-1); 2)3( m-5); 12(a+b); (3c+5b)*14;

Answer 1

1) =4a+8
    =9p-9q
    =10m-5

2) =3m-15
    = 12a+12b
    = 42c+70b

Answer 2

1) 4(а + 2)

To expand the expression 4(а + 2), we can distribute the 4 to both terms inside the parentheses. This means multiplying 4 by both а and 2.

The expanded form of 4(а + 2) is 4а + 8.

(p - q) * 9

To expand the expression (p - q) * 9, we can distribute the 9 to both terms inside the parentheses. This means multiplying 9 by both p and -q.

The expanded form of (p - q) * 9 is 9p - 9q.

5(2m - 1)

To expand the expression 5(2m - 1), we can distribute the 5 to both terms inside the parentheses. This means multiplying 5 by both 2m and -1.

The expanded form of 5(2m - 1) is 10m - 5.

2) 3(m - 5)

To expand the expression 3(m - 5), we can distribute the 3 to both terms inside the parentheses. This means multiplying 3 by both m and -5.

The expanded form of 3(m - 5) is 3m - 15.

12(a + b)

To expand the expression 12(a + b), we can distribute the 12 to both terms inside the parentheses. This means multiplying 12 by both a and b.

The expanded form of 12(a + b) is 12a + 12b.

(3c + 5b) * 14

To expand the expression (3c + 5b) * 14, we can distribute the 14 to both terms inside the parentheses. This means multiplying 14 by both 3c and 5b.

The expanded form of (3c + 5b) * 14 is 42c + 70b.

Please let me know if you need any further clarification or have any other questions!