a. O a. 2a - 3 b. 2a -- 8 c. Za + 3 d 2a + 8 4. The area of a square is 4x?+ 12x + 9 square units. Which expression represents the length of the side? a. (3x + 2) units b. (4x + 9) units c. (2x + 3) units d. [4x + 3) units 5. The sides of a rectangle with an area of x + 3x + 2 are a. (x + 1) and (x + 2) b. (x-1) and (x-2) c. (x-1) and (+2) d. (x + 1) and (x - 2) 6. Which of the following must not be the value of a in the expression? 362 b. 1 C-1 d. 2 7. Which of the following expressions is not a rational algebraic expression? 3c2 b. -2 c. 4y + 4xy 3y a+1 8. Which of the following must not be the value of a in the expression? a.o b. 1 c. 2 9. What rational algebraic expression is the same as 2-17 a. X + 1 b.x-1 c. 1 d. - aº-1 10. Aaron was asked by his teacher to simplify on the board. He wrote his solution on the board this way a 1 (a-1){c+1) = 1 X-1 Did he arrive at the correct answer? a. Yes. The expressions that he crossed out are all common factors. b. Yes. The LCD must be eliminated to simplify the expression c. No. a must be cancelled out so that the answer is d. No. a is not a common factor of numerator and denominator.​