
5+2(4-8) что делать первым складывать или вычитать?


Ответы на вопрос




Solving the Mathematical Expression: 5 + 2(4-8)
To solve the mathematical expression 5 + 2(4-8), we need to follow the order of operations, which is commonly remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).
Parentheses are solved first. In this case, we have 4-8 inside the parentheses.
Subtracting within the Parentheses: 4 - 8 = -4
Now, we have 5 + 2(-4) left to solve.
Multiplication: Next, we perform the multiplication operation. In this case, we have 2 multiplied by -4.
Multiplying 2 by -4: 2 * (-4) = -8
Finally, we add the result of the multiplication to 5.
Adding the Results: 5 + (-8) = -3
So, the result of the expression 5 + 2(4-8) is -3.
Order of Operations: Multiplication or Subtraction First?
When solving an expression like 5 + 2(4-8), the order of operations dictates that we first perform the operations inside the parentheses, and then the multiplication. Therefore, in this case, we perform the subtraction inside the parentheses before the multiplication.
In summary, when solving mathematical expressions, it's important to follow the order of operations to ensure the correct result.


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