16 . 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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17 . 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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18 . 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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19 . a4 - ab3, a3b + b4 এর গ.সা.গু. কত?
  • A. a - b
  • B. a + 1
  • C. 1
  • D. a - 1
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20 . a3 - ab2, ab - bc এর গ.সা.গু. কত?
  • A. a - c
  • B. a - b
  • C. 1
  • D. b + c
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21 . a3 + b3, a6 - b6 এর ল.সা.গু. কত?
  • A. 1
  • B. a3 + b3
  • C. a6 - b6
  • D. a3 - b3
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22 . 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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23 . a2b(a3 - b3), a2b2(a4 + a2b2 + b4) এবং (a3 + b3) এর ল.সা.গু নির্নয় করুনঃ
  • A. a3b(a6 - b6)
  • B. a3b3(a6 - b6)
  • C. a2b2(a6 - b6)
  • D. ab(a5 - b5)
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24 . a2 + ab, a2 - b2 এর গ.সা.গু. কত?
  • A. ab
  • B. a - b
  • C. a2 - b2
  • D. a + b
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25 . a(a+b), a2(a-b) ল.সা.গু কত?
  • A. a2
  • B. a
  • C. a2 - b2
  • D. a2(a2 - b2)
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26 . 6 a 2 b 2 c  এবং  9 a 4 b d 2  এর ল.সা.গু কত?
  • A. 3ab
  • B. 36ab
  • C. 18 a 4 b 2 c d 2
  • D. 36 a 4 b 2 d 2
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27 . 4x2y2z এবং 6xy2 এর ল.সা.গু. কত?
  • A. 24xyz
  • B. 24x2yz
  • C. 12x2y2z
  • D. 12xy2z
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28 . 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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29 . 2x2 + x এবং 4x2 - 1 - এর ল.সা.গু কত?
  • A. x(2x2 + 1)
  • B. x2(2x2 + 1)
  • C. x(2x + 1)(2x - 1)
  • D. (2x2 - 1)
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30 . 2a2b, 3ab2c এর ল.সা.গু. কত?
  • A. 3abc
  • B. 6abc
  • C. 6a2b2c
  • D. 2abc
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