Question

Раскройте скобки и преобразуйте. 0.6(2a-6b)+(5b-3a) 4а+(2а-(4а+3))

Answer 1

А) 0,6(2а-6b)+(5b-3a)
1,2a-3,6b+5b-3a
6,2a-6,6b
Б) 4a+(2a-(4a+3))
4a+(2a+4a-3)
4a+2a+4a-3
10a^3-3

Answer 2

Solving the Expression

To solve the given expression, we will follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

The given expression is: 0.6(2a-6b)+(5b-3a)+4a+(2a-(4a+3))

1. First, we will simplify the expression within the innermost parentheses. 2. Then, we will perform the operations from innermost to outermost.

Let's solve it step by step.

Step 1: Simplify the Innermost Parentheses

The expression is: 0.6(2a-6b)+(5b-3a)+4a+(2a-(4a+3))

The innermost parentheses are (4a+3). We will simplify this first.

= 0.6(2a-6b)+(5b-3a)+4a+(2a-4a-3) = 0.6(2a-6b)+(5b-3a)+4a+(-2a-3)

Step 2: Perform Operations from Innermost to Outermost

Now, we will perform the operations from innermost to outermost.

= 0.6 * 2a - 0.6 * 6b + 5b - 3a + 4a - 2a - 3 = 1.2a - 3.6b + 5b - 3a + 4a - 2a - 3 = (1.2a - 3a + 4a - 2a) + (-3.6b + 5b) = 0.2a - 3.6b + 5b - 3

Final Simplified Expression

The simplified expression is: 0.2a + 1.4b - 3

Therefore, the simplified and expanded form of the given expression is 0.2a + 1.4b - 3.