Activity 3: Choose the letter of the best answer. Encircle the letter of your answer.

1. Which of the following is a perfect square number?

A. 8
B. 24
C. 125
D. 121

2. All of the following expressions are perfect squares, EXCEPT one. What is it?

A. 12a²b²
B. x²y⁶
C. 16a²b⁶
D. 25x⁶y⁸

3. Which of the following is equal to (2x-1)2?

A. 4x2+4x+1
B. 2x2+2x+1
C. 4x2-4x+1
D. 4x2.4x-1

4. Which of the following is a perfect square trinomial?
A. x²+x+9
B. 4x²-20x-25
C. 4x²+2Oxy+9y²
D. 9a²-6a²bc+a²b²c²

5. If one factor of a perfect square trinomial is 2xy-3x, what is the other factor?

A. 2-3x
B. 2y+3x
C. 2xy-3x
D. 2xy+3x​