Question

Раскрыть скобки ,привести подобные 5(2х-5)-(10х-24)

Answer 1

5(2х-5)-(10х-24)=10х-25-10х+24=-25+24=-1
(Посмотри ответ в конце учебника и сверь)

Answer 2

To expand the expression and combine like terms, follow these steps:

1. Distribute the coefficient 5 to each term inside the first set of parentheses.
2. Distribute the coefficient -1 to each term inside the second set of parentheses.
3. Combine like terms.

Let's proceed step by step:

Step 1: Distribute the coefficient 5 to each term inside the first set of parentheses:

5 * (2x - 5) = 10x - 25

Step 2: Distribute the coefficient -1 to each term inside the second set of parentheses:

-1 * (10x - 24) = -10x + 24

Now, the expression becomes:

10x - 25 - (10x - 24)

Step 3: Combine like terms:

Since both terms have a 10x term, they cancel each other out:

(10x - 10x) = 0

Now the expression simplifies to:

-25 - 24

Finally, combine the constants:

-25 - 24 = -49

The simplified expression after expanding the brackets and combining like terms is:

-49