Question

Помогите пожалуйста дам 25 Баллов!!! Задание60 Раскройте скобки и упростите: 1) 3a-(a+2b); 2)5x-(2y-3x); 3) 3m-(5m-(2m-1)); 4)4a+(2a-(3a+)) За неправильный ответ бан!!!!!!

Answer 1

Ответ:

1)=3а-а+2b=2a+2b=2(a+b)

2)=5x-2y+3x=5x+3x-2y=8x-2y=2(4x-y)

3)=3m-(5m-2m+1)=3m-(3m+1)=3m-3m-1=-1

4)=4a+2a-(3a+?)=6а-3а+?=3а+?

Объяснение:

извени у тебя там нет числа. я вместо него поставила ?

Если в примере число, то поставь вместо ? это число

Answer 2

Ответ:

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Answer 3

Simplifying Expressions

To simplify the given expressions, let's go through each one step by step:

1) Expression: 3a - (a + 2b)

To simplify this expression, we can distribute the negative sign inside the parentheses:

3a - (a + 2b) = 3a - a - 2b

Next, we can combine like terms:

3a - a - 2b = 2a - 2b

Therefore, the simplified form of the expression 3a - (a + 2b) is 2a - 2b.

2) Expression: 5x - (2y - 3x)

Again, let's distribute the negative sign inside the parentheses:

5x - (2y - 3x) = 5x - 2y + 3x

Now, let's combine like terms:

5x - 2y + 3x = 8x - 2y

So, the simplified form of the expression 5x - (2y - 3x) is 8x - 2y.

3) Expression: 3m - (5m - (2m - 1))

Let's start by simplifying the innermost parentheses:

2m - 1 = 2m - 1

Now, let's simplify the expression inside the outer parentheses:

5m - (2m - 1) = 5m - 2m + 1

Combining like terms, we get:

5m - 2m + 1 = 3m + 1

Finally, let's simplify the entire expression:

3m - (5m - (2m - 1)) = 3m - (3m + 1) = 3m - 3m - 1 = -1

So, the simplified form of the expression 3m - (5m - (2m - 1)) is -1.

4) Expression: 4a + (2a - (3a + ))

It seems that there is a missing value inside the parentheses. Could you please provide the missing value so that we can proceed with simplifying the expression?

Please note that the missing value should be a number or a variable.

Once we have the missing value, we can continue with simplifying the expression.

Let me know if you have any further questions!