Question

Розкрийте дужки 1) (25 + m) ∙ 5........ 2) 9 ∙ (15- 2n)

Answer 1

Ответ:

$1)(25 + m) \times 5 = 125 + 5m$

$2)9 \times (15 - 2n) = 135 - 18n$

Answer 2

1. (25 + m) ∙ 5

To expand this expression, we can distribute the 5 to both terms inside the parentheses:

(25 + m) ∙ 5 = 25 ∙ 5 + m ∙ 5

Simplifying further:

25 ∙ 5 + m ∙ 5 = 125 + 5m

So, the expanded form of (25 + m) ∙ 5 is 125 + 5m.

2. 9 ∙ (15 - 2n)

Similar to the previous expression, we distribute the 9 to both terms inside the parentheses:

9 ∙ (15 - 2n) = 9 ∙ 15 - 9 ∙ 2n

Simplifying further:

9 ∙ 15 - 9 ∙ 2n = 135 - 18n

So, the expanded form of 9 ∙ (15 - 2n) is 135 - 18n.