Question

564-(17а+15а-29а+70)×4

Answer 1

Пошаговое объяснение:

сначала действия в скобочках

17a+15a= 32a

32a-29a= 3a

3a+70

564-70=494

494*4= 1976

Ответ: 3a+1976

(вообще не уверена в ответе)

Answer 2

Let's simplify the expression step by step:

First, let's simplify the terms inside the parentheses: 17a + 15a - 29a + 70 = (17a + 15a - 29a) + 70 (grouping the 'a' terms) = 3a + 70

Now, substitute this simplified expression back into the original equation: 564 - (3a + 70) × 4

Next, let's simplify the expression inside the parentheses: (3a + 70) × 4 = 12a + 280

Substituting this back into the original equation: 564 - (12a + 280)

Now, let's simplify the expression further: 564 - 12a - 280 = (564 - 280) - 12a (grouping the constant terms) = 284 - 12a

Therefore, the simplified form of the expression 564 - (17a + 15a - 29a + 70) × 4 is 284 - 12a.