Question

Найдите алгебраическую сумму многочленов 12.3. 1) (4х +8y) + (23х + 5у); 2) (83а - 91b) - (89а - 100b);3) (1,5т - 4,2n) - (2т + 3n); 4) (5k + 6t) + (2,8t – 3,1k);37135)20b +11b а; 6) а + 53d + 60d​

Answer 1

Ответ:

Объяснение:

12.3

1) = 4x + 8y + 23x + 5y = 27x + 13y

2) = 83a - 91b - 89a + 100b = -6a + 9b

3) = 1.5t - 4.2n - 2t - 3n = -0.5t - 7.2n

4) = 5k + 6t + 2.8t - 3.1k = 1.9k + 8.8t

5) = 31b ?

6) a + 113d ?

Какой-то мусор в условии - поправь - досчитаю)

Answer 2

1. (4x + 8y) + (23x + 5y): To find the algebraic sum, we combine like terms: 4x + 23x + 8y + 5y = 27x + 13y

Therefore, the algebraic sum of (4x + 8y) + (23x + 5y) is 27x + 13y.

2. (83a - 91b) - (89a - 100b): Again, we combine like terms: 83a - 89a - 91b + 100b = -6a + 9b

Therefore, the algebraic sum of (83a - 91b) - (89a - 100b) is -6a + 9b.

3. (1.5t - 4.2n) - (2t + 3n): Combining like terms: 1.5t - 2t - 4.2n - 3n = -0.5t - 7.2n

Therefore, the algebraic sum of (1.5t - 4.2n) - (2t + 3n) is -0.5t - 7.2n.

4. (5k + 6t) + (2.8t - 3.1k): Combining like terms: 5k - 3.1k + 6t + 2.8t = 1.9k + 8.8t

Therefore, the algebraic sum of (5k + 6t) + (2.8t - 3.1k) is 1.9k + 8.8t.

5. 20b + 11b: Combining like terms: 20b + 11b = 31b

Therefore, the algebraic sum of 20b + 11b is 31b.

6. a + 53d + 60d: Combining like terms: a + 53d + 60d = a + 113d

Therefore, the algebraic sum of a + 53d + 60d is a + 113d.