Explanation for Question 5 From the Math (No Calc) Section on the 2018 May Sat
Question five asks, which of the following is equivalent to two X plus four 2 squared minus four X squared. So I've just rewritten that problem right 3 here. And we're going to start by distributing. So this becomes four X 4 squared. So four X squared plus 5 eight X plus eight X, which is just 16 X plus 6 16 minus four X squared, 7 and the four X squared cancel out. So then we have 16 ax plus 8 16, and this factors out into 16 X 9 plus one. So the correct answer here is answer choice.