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1. x2-3x,x2-9

  • A. x-4
  • B. x-4
  • C. x-4
  • D. x-4

Answer: Option C

Explanation:

a² - 3a = a ( a - 3) a² - 9 = a² - 3² = (a+3) (a-3) a² - 4a + 3 = a² - 3a - a + 3 = a (a-3) - 1 (a-3) = (a-3) (a-1) নির্ণেয় গ.সা.গু = (a-3)

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