Question

Раскройте скобки 2а - 3(а -(4а - 5))

Answer 1

2а-3(а-4а+5)= 2а-3а+12а-15= 11а-15

Answer 2

2a-3(a-(4a-5))=2a-3(a-4a+5)=2a-3(-3a+5)=2a-(-9a+15)=2a+9a-15=11a-15

Answer 3

Solving the Expression 2a - 3(a - (4a - 5))

To solve the expression 2a - 3(a - (4a - 5)), we can follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, let's simplify the expression step by step:

1. Simplify the innermost parentheses: - 4a - 5 2. Simplify the next set of parentheses: - a - (4a - 5) 3. Multiply 3 by the result of step 2: - 3 * (a - (4a - 5)) 4. Subtract the result of step 3 from 2a: - 2a - 3 * (a - (4a - 5))

Let's proceed with the calculations.

1. Simplify the innermost parentheses: - 4a - 5

2. Simplify the next set of parentheses: - a - (4a - 5) - a - 4a + 5 - -3a + 5

3. Multiply 3 by the result of step 2: - 3 * (-3a + 5) - -9a + 15

4. Subtract the result of step 3 from 2a: - 2a - (-9a + 15) - 2a + 9a - 15 - 11a - 15

So, the simplified form of the expression 2a - 3(a - (4a - 5)) is 11a - 15.