Question 14 Answer and Explanation _ACT December 2011 Form 70A Math Section

Question 14 Answer and Explanation _ACT December 2011 Form 70A Math Section

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14. Whenever a, x, and y are positive integers, which of the following expressions is equivalent to ${x}^{a}{y}^{a}$ ?

F. ${(xy)}^{a}$

G. ${(xy)}^{2a}$

H. ${(x+y)}^{a}$

J. ${(x+y)}^{2a}$

K. $x({y}^{a})$

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation

Examine the calculation of the index.