Question

5x ^ 3 - 5y ^ 3 пpи x = 5 y = 4 СРОЧНО!!

Answer 1

Ответ:

305

Объяснение:

5x^3-5y^3=(5*5^3)-(5*4^3)=625-320=305

Answer 2

To evaluate the expression 5x^3 - 5y^3 when x = 5 and y = 4, you substitute the given values into the expression. Let's calculate it step by step:

1. Replace x with 5: 5(5)^3 - 5y^3 - (result: 5 * 125 - 5y^3)
2. Replace y with 4: 5 * 125 - 5(4)^3 - (result: 625 - 5 * 64)
3. Evaluate the exponentiation: 625 - 5 * 64 - (result: 625 - 320)
4. Perform the multiplication: 625 - 320 - (result: 305)

Therefore, when x = 5 and y = 4, the expression 5x^3 - 5y^3 equals 305.