11. Which mathematical statement is correct?
A. (2x - 1)(3x - 4) = 6x 5x + 4
B. (4x - 5)(4x - 5) = 16x? 40x + 25
C. (3x - 4)(2x + 7) = 6x2-3x -8
D. (2x - 5)2 = 4x2 + 20x + 25
12. The area of a square is 4x2 + 12x + 9 square units. Which expression represents
the length of the side?
A. (3x + 2) units
C. (4x + 9) units
B. (2x + 3) units
D. (4x + 3) units
13. Your classmate was asked to square (2x - 3), the answered 4x2 +9. Is his
answer correct?
A. No, because squaring a binomial always produces a trinomial product.
B. No, because the answer must be 4x2 + 9
C. Yes, because squaring a binomial always produces a binomial product.
D. Yes, because the product rule is correctly applied.
14. Let A: 4x2 - 81, and let B: (2x - 9)(2x + 9). If x = 2, which statement is true
about A and B?
A, AB
B. AB
C. A= B
D. A
15.The length of a box is five meters less than twice the width. The height is 4
meters more than three times the width. The box has a volume of 520 cubic
meters. Which of the following equations can be used to find the height of the
box?
A. W(2L - 5)(3H + 4) = 520
B. W(2L + 5)(3H - 4) = 520
C. W(2W - 5)(3W - 4) = 520
D. W(2W - 5)(3W + 4) = 520​