If a = and a is a nonzero integer, which of the following is equivalent to a ?
A. 4a
B. 4
C.
D. 2
Answer:D
If a = and a is a nonzero integer, which of the following is equivalent to a ?
A. 4a B. 4 C. D. 2
Explanation: D The first step here is to simplify the equation and solve for a. Start by multiplying both sides by 16 to get 16a = 4a2. Divide both sides by 4 to get 4a = a2. Divide both sides by a to get 4 = a. This is now your target answer. Plug a = 4 into the values of a in the answer choices to determine which one matches 4. Choice (D) is the answer, since 2 = 2 = 2(2) = 4.