Question

(-5)^2+(-1)^7 вычислите

Answer 1

5^2=25
(-1)^7=-1
25+(-1)=24

Answer 2

To calculate the expression, follow the order of operations (PEMDAS/BODMAS):

1. Perform the operations within parentheses or brackets first.
2. Evaluate exponents (powers).
3. Perform multiplication and division from left to right.
4. Perform addition and subtraction from left to right.

Let's go step by step:

1. Exponents: (-5)^2 = (-5) × (-5) = 25 (-1)^7 = -1 (Any odd power of -1 is -1, any even power is 1)

Now we have: 25 + (-1) = 25 - 1 = 24

So, the result of the expression (-5)^2 + (-1)^7 is 24.