Question

(63-42)*2 раскрыть скобки и решить пример

Answer 1

(63-42)*2

(63-42)=21

21*2=42

Answer 2

To solve the expression (63-42)*2, you need to follow the order of operations, which is often remembered by the acronym PEMDAS:

1. P: Parentheses first.
2. E: Exponents (i.e., powers and square roots, etc.).
3. MD: Multiplication and Division (from left to right).
4. AS: Addition and Subtraction (from left to right).

Since there are parentheses in the expression, we'll start by evaluating what's inside the parentheses:

(63 - 42) * 2

Now, perform the subtraction inside the parentheses:

(21) * 2

Finally, perform the multiplication:

21 * 2 = 42

So, the result of the expression (63-42)*2 is 42.