2. What are the positive and negative square root of 81? A. 18
B. 16
C. +9
D. +7
3. Which of the following will make the expression x² + 6x + _____ a perfect square trinomial?
A. 3
B. 6
C. 9
D. 12
4. What is the solution set of 6x²-30x = –36?
A. {1,2}
B. {2,3}
C. {3,4}
D. {4,5}
B. 16
C. +9
D. +7
3. Which of the following will make the expression x² + 6x + _____ a perfect square trinomial?
A. 3
B. 6
C. 9
D. 12
4. What is the solution set of 6x²-30x = –36?
A. {1,2}
B. {2,3}
C. {3,4}
D. {4,5}
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