1.The area of a square is (4x2 + 12x + 9) square units. Which expression represents the length of the side? A. (2x + 3) units B. (4x + 3) units C. (3x + 2)units D. (4x + 9) units
2. Which of the following is a factor of 8a3-27b3?
A.2a2 + 2ab + 3b2 B. 2a2 - 2ab + 3b2 C. 4a2 - 6ab + 9b2 D. 4a2 + 6ab + 9b2
3.Which of the following are factors of x2 - 64y2?
A. (x-8y)2 B. (x-8y)(x+8y) C.(x+8y)(x+8y) D. (8-xy)(8+xy)
4. Which of the following is TRUE?
A. 25x2-120xy+144y2= (5x - 12y)2
B. 9a2-24a-16= (3a - 4)2
C. 16x2+12xy+9y2=(4x + 3y)2
D. x2-y2= (x - y)2
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