3. What is the GCF of 2a3 and ab? A. a3 C. a B. 2a3 D. 2a6 4. Which of the following is a perfect square? A. 12x4 C. 25x5y6 B. 36xby7 D. 16x2y2 5. Which of the following trinomials has factors (3a-2b)and(2a-b)? A. 6a2-7ab+2b2 C.6a2-7ab-2b2 B.6a2+7ab-2b2 D. 6a2+7 ab+2b2 6. If one factor of a perfect square trinomial is 2xy-3x, what is the other factor? A. 2y-3x C. 2xy-3x B. 2y+3x D. 2xy+3x2. 7. The square of a number equals five times that number. Find the number. A.0 or 1 C. O or 5 B.0 or 3 D. O or 7 8. If the area of the square is^4x2 - 8x +4, what is the length of the side? A. -2x+2 C. 2x-2 B.-X+2 D.x+2 9. Which of the following is a perfect square expression? A. 3x2 C. 9x3 B. 4x D. 16x4​