A, C, and D are all correct answers, since you are taking away 4 in each of the answers. Hope this helped!
Answer: A. 724
Step-by-step explanation:
For any values less than -3, the answer is undefined, because then you have a negative value for √x+3
Y ^(-2/3)^-6 = y^12/3 = y^4
x^(1/2)^ -6 = x^-3 = 1 x^3
so the answer is y^4 * 1 /x^3 = y^4 / x^3
A