1. What is the simpliest form of (x+3)2?
A. x+9
B. x2+6x+6
C. xx2+6x+9
D. x2+9
2. What is (x+2) (x-2) equal to?
A. x-4
B. x2-4
C. x2+4
D. x+4
3. What should be the value of k so that x2+kx+9 is a perfect square trinomial?
A. 2
B. 4
C. 6
D. 8
4. Which of the following expressions is equal to (x-1)3?
A. (x-1) (x2-2x+1)
B. (x-1) (x2+2x-1)
C. (x-1) (x2+2x+1)
D. (x-1) (x2-2x-1)​