Write 2x to the power of -2 without negative indices.
How is the answer 2/x squared? Please explain
A negative exponent indicates division. Consider
x^-2 * x^2 = x^0 = 1
therefore,
x^-2 = 1/x^2
In your case,
2x^-2 = 2/x^2
A negative exponent in the numerator becomes positive in the denominator, and vice-versa. So,
x^-2/y^-3 = y^3/x^2