Question

5•(-2/5)^3 вычислите

Answer 1

(-2/5)^3=(-2/5)*(-2/5)*(-2/5)=-8/125
-8/125*5=-8/25-т.е.сокращаем 125 на 5 .
-8/25=-0,32

Answer 2

To calculate 5 • (-2/5)^3, follow these steps:

Step 1: Simplify the expression inside the parentheses. (-2/5)^3 means raising -2/5 to the power of 3.

Step 2: Calculate the result of (-2/5)^3. (-2/5)^3 = (-2/5) • (-2/5) • (-2/5) = (-2 • -2 • -2) / (5 • 5 • 5) = -8 / 125

Step 3: Multiply the result from Step 2 by 5. 5 • (-8/125) = -40/125

Step 4: Simplify the result. -40/125 can be simplified by dividing both the numerator and the denominator by their greatest common divisor (GCD), which is 5. -40/125 = -8/25

So, the value of the expression 5 • (-2/5)^3 is -8/25.