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- Question
Expanded and simplification of (x + 3)(x - 1) will be equal to
Options- A. x2+ 2x - 3
- B. x2 + 3x + 2
- C. x2 - 2x + 3
- D. x2 + 3x - 2
- Correct Answer
- x2+ 2x - 3
- 1. Given: 6x + 2(6-x) > 2x -2 < 5x/2 - 3x/4; then x can take which of the following values?
Options- A. 9
- B. -8
- C. 5
- D. -9 Discuss
- 2. What is the value of (4a2 - 9b2 )/(2a + 3b) is
Options- A. 2a - 3b
- B. 2a + 3b
- C. 2a
- D. 3b Discuss
- 3. If 4x - 5(2x - 1) > 2x + 3 > 2 - 3x; then x can take which of the following values?
Options- A. 1
- B. 0
- C. 2
- D. 3 Discuss
- 4. If x - y = -9 and xy = -20, then find x2 + y2 ?
Options- A. 61
- B. 41
- C. 81
- D. 51 Discuss
- 5. Coefficient of x in (x + 9)(8 - 5x) is
Options- A. 37
- B. -53
- C. -37
- D. 53 Discuss
- 6. If sinC + sinD =X, then the value of X is?
Options- A. 2cos[(C+D)/2]sin[(C-D)/2]
- B. 2sin[(C+D)/2]cos[(C-D)/2]
- C. 2cos[(C+D)/2]cos[(C-D)/2]
- D. 2sin[(C+D)/2]sin[(D-C)/2] Discuss
- 7. Find co-ordinates of the mid point of the segment joining points C (3,-5) and D (-7,3).
Options- A. (-2, -1)
- B. (5, -4)
- C. (-5, 4)
- D. (2, 1) Discuss
- 8. A line passing through the origin perpendicularly cuts the line 2x + 3y = 6 at point M. Find M?
Options- A. (6/11, 9/11)
- B. (6/7, 9/7)
- C. (6/11, -9/11)
- D. (-6/7, 9/7) Discuss
- 9. If 2x + 3(5-2x) > 2 - 3x < 2x - x/3, then x can take which of the following values?
Options- A. 0
- B. -2
- C. -4
- D. 2 Discuss
- 10. If x + y = 12 and xy = 32, then what is the value of x2 + y2 ?
Options- A. 24
- B. 144
- C. 128
- D. 80 Discuss
Simplification problems
Search Results
Correct Answer: 5
Correct Answer: 2a - 3b
Correct Answer: 0
Correct Answer: 41
Correct Answer: -37
Correct Answer: 2sin[(C+D)/2]cos[(C-D)/2]
Correct Answer: (-2, -1)
Correct Answer: (6/11, 9/11)
Correct Answer: 2
Correct Answer: 80
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