So this expression, 2 x-squared over y-squared to the 4th this is going to be the same as, 2 x-squared to the 4th power, over y-squared to the 4th power and of course we still have our x y to the -2 power out here, and actually let me simplify that as well we know that if we have, we know that if we have, x times y to the n-th power this the same thing as, taking each of the powers of each of the x and the y, and then taking the product this is x to the n times y to the n and actually if you just expand, if you multiply xy times itself n times we will see why this actually works out because you will have x multiplied by itself n times, if you rearrange the product and y multiplied by itself n times so if we use the same property here, x y to the -2, that's going to the the same exact thing as x to the -2 times y to the -2 now, what can we simplify? well, we can use this property again, right over here, we have 2 x-squared raised to the 4th power so that's going to be the same as, that's going to the the same thing as 2 to the 4th power, 2 to the 4th power times x-squared to the 4th power now we can do it in the denominator, y-squared to the 4th power