Question

2. (2 бали) Спростіть вираз: a) 4,2 x •(-6 у); б) 8 m + 5 р-13 m-p; B) x-(17-x) + (-x + 30); 3 г) - 6(4 + а) + 8(a - 6). помогите срочно​

Answer 1

Ответ:

Пошаговое объяснение:

a) 4,2x •(-6у) = -25,2xy

б) 8m + 5р - 13m - p = -5m + 4p

B) x - (17 - x) + (-x + 30) = x - 17 + x - x + 30 = x + 13

3 г) - 6(4 + а) + 8(a - 6) = -24 - 6a + 8a - 48 = 2a - 72

Answer 2

Simplifying Expressions:

a) To simplify the expression 4.2x • (-6y), we can distribute the multiplication: 4.2x • (-6y) = -25.2xy

b) To simplify the expression 8m + 5r - 13m - p, we can combine like terms: 8m - 13m + 5r - p = -5m + 5r - p

c) To simplify the expression x - (17 - x) + (-x + 30), we can simplify the parentheses and combine like terms: x - (17 - x) + (-x + 30) = x - 17 + x - x + 30 = 2x + 13

d) To simplify the expression -6(4 + a) + 8(a - 6), we can distribute the multiplication and combine like terms: -6(4 + a) + 8(a - 6) = -24 - 6a + 8a - 48 = 2a - 72

Therefore, the simplified expressions are: a) -25.2xy b) -5m + 5r - p c) 2x + 13 d) 2a - 72

I hope this helps! Let me know if you have any further questions.