451 . |x| ≤ 4 এর সঠিক সমাধান কোনটি?
- A. 1 ≤ x ≤ 2
- B. 3 ≤ x ≤ 1
- C. 5 ≤ x ≤ 1
- D. -4 ≤ x ≤ 4
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453 . √2 - 1 এর মান কত?
- A. 1.4142
- B. 0.8182
- C. 0.4142
- D. 0.4148
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454 . ax2 + 2a, x4 - 4, x4 + 4x2 + 4 এদের গ.সা.গু. কত?
- A. a(x2 + 2)
- B. x2 - 2
- C. x2 + 2
- D. 1
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455 . a² - 3a, a² - 9, a² - 4a + 3 -এর গ.সা.গু. হবে--
- A. a(a - 3)(a - 1)
- B. (a - 3)(a - 1)(a + 3)
- C. (a - 3)
- D. (a - 3)(a + 3)
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456 . a² - b² ও a³ + b³ এর গ.সা.গু. কত?
- A. a² - b²
- B. a³ + b³
- C. a - b
- D. a + b
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457 . a3 + b3, a6 - b6 এর ল.সা.গু. কত?
- A. 1
- B. a3 + b3
- C. a6 - b6
- D. a3 - b3
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458 . 3x2y + 6xy2, 9x2 - 36y2 এর গ.সা.গু. কত?
- A. x + 2y
- B. 3 (x - 2y)
- C. 3 (x + 2y)
- D. x (x + y)
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459 . a4 - ab3, a3b + b4 এর গ.সা.গু. কত?
- A. a - b
- B. a + 1
- C. 1
- D. a - 1
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460 . a3 + 1, a3 - 1 এর গ.সা.গু. কত?
- A. a6 - 1
- B. (a - 1) (a + 1)
- C. 1
- D. a3 - 1
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461 . x2 + x, x2 + 2x + 1 এর ল.সা.গু. কত?
- A. (x + 1)
- B. x (x + 1)
- C. x (x + 1)2
- D. (x + 1)3
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462 . (a + b)2, a2 - b2 এর ল.সা.গু. কোনটি?
- A. (a + b)2
- B. (a - b)2
- C. (a + b)2 (a - b)
- D. (a2 - b2)
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463 . 2a2b, 3ab2c এর ল.সা.গু. কত?
- A. 3abc
- B. 6abc
- C. 6a2b2c
- D. 2abc
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464 . a3 - ab2, ab - bc এর গ.সা.গু. কত?
- A. a - c
- B. a - b
- C. 1
- D. b + c
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465 . x2 - 3x + 2, x3 - 5x2 + 6x এর গ.সা.গু. কত?
- A. x - 3
- B. x - 1
- C. x - 2
- D. (x - 3) (x - 1)
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