Answer Choices
(x+3)^2 +5
(x+3)^2 -5
(x-3)^2 +5
(x-3)^2 -5
Explanation for Question 7 From the Math (No Calc) Section on the Official Sat Practice Test 7
Question seven asks, which of the following is equivalent to the expression above. 2 So to solve this, I'm just going to go through the answer choices and 3 factor them out and see if they equal or original expression. 4 Starting with answer choice a X plus three times X plus three plus 5 five. So this becomes X squared plus six 6 X plus nine plus five. 7 And then once I add and subtract the like terms, 8 this becomes X squared plus six X plus 14. 9 And this isn't what our original expression was. 10 So we can eliminate answer choice. Eh, 11 next we're going to factor out answer choice B X plus three times X 12 plus three minus five. 13 We already know X plus three times X plus three is X squared plus 14 six X plus nine, because we just did that. 15 But this time, instead of adding five, 16 we're going to subtract five. So now when we add and subtract like terms, 17 our final, answer's going to be X squared plus six X plus four, 18 and this was our original expression. 19 So we know that answer choice B is the correct answer.