Question: 19. Simplify: - 3 3 A. 27 27 B. 1 C. 27 27 D. - - 20. Convert to scientific notation: 0.000123 A. 1.23 x

19. Simplify: - 3 3 A. 27 27 B. 1 C. 27 27 D. - -19. Simplify: - 3 3 A. 27 27 B. 1 C. 27 27 D. - -19. Simplify: - 3 3 A. 27 27 B. 1 C. 27 27 D. - -19. Simplify: - 3 3 A. 27 27 B. 1 C. 27 27 D. - -19. Simplify: - 3 3 A. 27 27 B. 1 C. 27 27 D. - -
19. Simplify: - 3 3 A. 27 27 B. 1 C. 27 27 D. - - 20. Convert to scientific notation: 0.000123 A. 1.23 x 10-5 B. 1.23 x 10-4 C. 1.23 x 104 D. 1.23 x 105 21. Simplify: (-3y4) (- 341) A. - 94 B. - 9y3 C. 9 4 D. 9y3 22. Simplify: -2y (y 2 - 2y + 1) A. -2y3 + 4y2 + 1 B. -2y3 - 4y2 - 1 C. -2y3 - 4y2 + 2y D. - 2y3 + 4y2 - 2y23. Simplify: (x - 6)(x + 2) A. x2 - 4x - 4 B. x2 + 4x - 4 C. x2 - 4x - 12 D. x2 + 4x - 12 24. Multiply: (x + 3)(x2 - 3x + 9) A. x3 + 27 B. x3 - 27 C. x3 - 9x2 - 9x - 27 D. x3 - 9x2 + 9x - 27 25. Simplify: (a - 4)(a + 4) A. a2 + 16 B. a2 - 16 C. a2 - 8a - 16 D. a2 + 8a - 16 26. For the functions f(x) = 2x - 1 and g(x) = 2x + 1, find: f(x) . g(x) A. 4x2 - 1 B. 4x2 + 1 C. 4x2 - 4x - 1 D. 4x2 - 4x + 1 27. Simplify: 15x10y4 + 5x2y2 A. 3x5y2 B. 3x8 y2 C. 10x5y2 D. 10x8y228. Divide: (48y4 - 24y2) + (-6y) A. -8y4 - 4y2 B. -By4 + 4y C. -8y3 - 4y D. -8y3 + 4y 29. Divide: ( x2 - 1 ) + (x- 1) First step: factor x2 - 1 A. X - 1 B. x + 1 C. X - - 1 D. at - 30. For the functions f(x) = x3 - 8 and g(x) = x - 2, find: f (x) + g(x) First step: factor x3 - 8 A. x2 - 2 B. x2 + 2 C. x2 - 2x + 4 D. x2 + 2x + 4 31. Find the greatest common factor: x2y, 4xy2 A. 4x3 3 B. 4x2y2 C. 4xy D. Xy37. Factor the difference of squares: 9x2 - 1 A. (9x - 1)(9x - 1) B. (9x - 1)(9x + 1) C. (3x - 1)(3x + 1) D. (3x - 1)(3x - 1) 38. Factor the difference of two cubes: y3 - 64 A. (y + 4)(y2 + 4y + 16) B. (y + 4)(y2 - 4y + 16) C. (y - 4)(y2 + 4y + 16) D. (y - 4)(y2 - 4y + 16) 39. Factor: 9x2 - 12x + 4 A. (3x + 2)(3x + 2) B. (3x - 2)(3x - 2) C. (3x - 2)(3x + 2) D. The expression cannot be factored. 40. Solve using the zero product rule: (2x - 4)(x + 6) = 0 A. -4, 6 B. -2, -6 C. 2, -6 D. 4, -6 41. Solve by factoring: 5x2 - 20 = 0 A. 1, -1 B. 2, -2 C. 4, -4 D. 5, -542. Find the solution to the function: f (x ) = x2 - 2x - 15 A. -3, -5 B. -3, 5 C. 3, -5 D. 3, 5 43. The area of a rectangular-shaped patio is 240 square feet. The length is 8 feet longer than the width. Which of the following equations would be used to solve the problem? A. x2 = 240 B. x2 + 8 = 240 C. x(X + 8) = 240 D. x2 + x = 240 44. Determine the values for which the expression is undefined: A. -2, 2, 4 B. -2, 2 C. -2, 4 D. 0, 2, 4 45. Simplify: - - 6.x + 9 x - - 9 1 1 - B. 6.x C. D

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