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1. (2x - 1) (x + 3) = 2x(x + 1) এর সঠিক সমাধান কোনটি?

  • A. x = 9
  • B. x = 9
  • C. x = 9
  • D. x = 9

Answer: Option D

Explanation:

(2x−1)(x+3)=2x(x+1)
বা, 2x2+3.2x−x−3 = 2x2+2x
বা, 2x2+6x−x−3−2x2−2x=0
বা, 3x−3=0
বা, 3(x−1)=0
বা, x−1=0
∴x=1

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