5
When x = 0 and y = 0, which of the following is equivalent to
(5)?

  (b)  x^15/y^5

Step-by-step explanation:

The exponent outside parentheses multiplies all of the exponents inside parentheses.

  (x^3/y)^5 = x^(3·5)/y^(1·5) = x^15/y^5

Additional comment

When it comes to exponents, I find it useful to remember that an exponent signifies repeated multiplication: x·x·x = x³. The exponent outside parentheses has the same meaning:

  (x³)² = (x·x·x)·(x·x·x) = x⁶

The rule is summarized by ...

  (a^b)^c = a^(bc)

1,918

step-by-step explanation: