2. Why does mathematics use a specialized vocabulary? How is it similar or different from other disciplines that use a specialized vocabulary such as law or medicine?
3. Select the difference of (8x2 - 3x3) - (6x2 - 8x3).
A. 7x6
B. 7x5
C. 2x2 - 11x3
D. 2x2 + 5x3
4. Simplify the following expression. 4(4x + 2)
A. 16x + 8
B. 16x + 2
C. 24x
D. 8x + 6
5. Select the product of (3x - 8)(2x + 9).
A. 6x2 - 11x - 72
B. 17x - 72
C. 6x2 + 11x - 72
D. 5x + 1
6. Simplify the following expression. (x + 2)3
A. 8x3
B. X3 + 8
C. X3 + 6x2 + 12x + 8
D. X3 + 6
7. Select the product of (5x + 8)(5x - 8).
A. 25x2 - 64
B. 25x2 - 80x - 64
C. 10x2
D. 10x
8. Select the product of (8x + 5)(x2 - 4x + 1).
A. 8x3 - 27x2 - 12x + 5
B. 13x2 - 52x + 13
C. 8x3 - 37x2 - 28x + 5
D. X2 + 4x + 6
9. Select the product of (-2x5y)(x7y6).
A. 2x12y7
B. -2x12y7
C. -2x3y2
D. 2x35y6
10. Select the product of (7x - 8)(7x - 8).
A. 49x2 + 64
B. 49x2 + 112x + 64
C. 49x2 - 64
D. 49x2 - 112x + 64
11. Select the product of (3x + 7) * (7x – 3).
A. 21x2 + 40x -21
B. 10x2 + 8x + 4
C. 10x2 + 40x – 21
D. 21x2 – 21
12. Select the difference of (2x2 – 13x + 7) – (1 – 12x) .
A. 2x2 – 25x + 8
B. 2x2 + x – 6
C. 2x2 – x + 6
D. x2 + 6
13. Which of the following best illustrates a geometric representation of ( x + 2) ( x + 4) ?
A.
B.
C.
D.
14. Factor the expression. x2 + 11x + 24
A. (x + 1)(x + 24)
B. (x + 8)(x + 3)
C. (x - 8)(x - 3)
D. Prime Polynomial
15. Factor the expression. x2 - 18x + 32
A. (x - 2)(x - 16)
B. (x - 8)(x - 4)
C. (x - 8)(x + 4)
D. Prime Polynomial
16. Factor the expression. X2 - 51x + 144
A. (x - 12)2
B. (x - 9)(x - 16)
C. (x - 3)(x - 48)
D. Prime Polynomial
17. Factor the expression. 9x2 + 27x + 14
A. (3x - 7)(3x - 2)
B. (3x + 7)(3x + 2)
C. (9x + 2)(x + 7)
D. Prime Polynomial
18. Factor the expression. 70x2 + 65x + 15
A. 5(2x - 1)(7x - 3)
B. 5(2x + 1)(7x + 3)
C. (70x + 1)(x + 15)
D. Prime Polynomial
19. Factor the expression. -49x2 - 49x - 12
A. -(7x - 3)(7x + 4)
B. -(7x + 3)(7x + 4)
C. (-7x + 3)(7x + 4)
D. Prime Polynomial
20. Factor the expression. X2 + 2x + 48
A. (x + 1)(x + 48)
B. (x + 6)2
C. (x + 6)(x + 8)
D. Prime Polynomial
21. Factor the expression. 16x2 - 81
A. (4x + 9)(4x - 9)
B. (4x + 9)2
C. (4x - 9)2
D. Prime Polynomial
22. Factor the expression. y2 + 10xy + 25x2
A. (y - 5x)²
B. (y + 5x)²
C. (y + 5x)(y - 5x)
D. Prime Polynomial
23. Factor the expression. -216x3 + 1
A. (-6x + 1)(36x2 + 6x + 1)
B. (-6x + 1)3
C. (-6x – 1)(36x2 – 6x + 1)
D. Prime Polynomial