How do you simplify the expression #(a/b)^{-2}# giving the final answer with only positive exponents?

1 Answer
Jemuel C.
Dec 16, 2014

The final answer is # b^2/a^2#

How this came to be?

We need to follow the laws of exponent.

# ( x/y)^n = x^n/y^n#

So,

#a^-2/b^-2#

For negative exponents, we bring them up if it is from the denominator and we bring them down if it is from the numerator. This is how you make them positive.

Therefore, the final answer is.......

# b^2/a^2#

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