Explanation for Question 8 From the Math (Calc) Section on the 2019 May Sat
So question eight asks, which of the following expressions is equivalent to 2 two, a squared times a plus three. 3 So to figure this out, all we have to do is distribute. 4 So I'm going to be right this for a start to a squared times, 5 a plus three. So when you distribute, 6 all you have to do is multiply the number outside of the parentheses 7 by both numbers inside the premises. 8 So let's start with two-way square times. A two-way square time site is two, 9 a cubed. Plus two, 10 I squared times three is six, 11 a square. Now I cubed and a squared 12 can't be added together because they aren't like terms. 13 Which means that the answer here is D because we can't simplify this any 14 further.