Explanation for Question 2 From the Math (No Calc) Section on the 2017 October Sat
Question two asks, which of the following is equivalent to two X squared minus 2 X plus three times X squared minus X. 3 So all we have to do here is factor two times X squared, 4 minus X factors into two squared plus negative two 5 X. And that times four plus three X squared minus 6 X is just plus three X squared plus negative three 7 X. Now we can add and subtract like terms to get five 8 X squared plus negative five X 9 and that's answer choice.