Question

1. 5(3a-3b)-2(2b-6a) 2. 3(4x-5y)-5(-7x+8y) упростите вырожение

Answer 1

Пошаговое объяснение:

использовал сокращение , вычитание , получился такой ответ , все правильно

Answer 2

1. Let's simplify the expression step by step:

5(3a - 3b) - 2(2b - 6a)

Step 1: Apply the distributive property to each term inside the parentheses:

= 5 * 3a - 5 * 3b - 2 * 2b + 2 * 6a

= 15a - 15b - 4b + 12a

Step 2: Combine like terms:

= (15a + 12a) + (-15b - 4b)

= 27a - 19b

Therefore, the simplified expression is 27a - 19b.

2. Let's simplify the expression step by step:

3(4x - 5y) - 5(-7x + 8y)

Step 1: Apply the distributive property to each term inside the parentheses:

= 3 * 4x - 3 * 5y - 5 * -7x + 5 * 8y

= 12x - 15y + 35x - 40y

Step 2: Combine like terms:

= (12x + 35x) + (-15y - 40y)

= 47x - 55y

Therefore, the simplified expression is 47x - 55y.