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      Question

      If (x - 5)2 - (x + 5)2 = 0, then

      what is the value of 'x'?
      B 20 Correct Answer Incorrect Answer
      C 8 Correct Answer Incorrect Answer
      D - 20 Correct Answer Incorrect Answer

      Solution

      We have given, (x - 5)2 - (x + 5)2 = 0 Using (a2 - b2) = (a + b)(a - b) (x - 5 + x + 5)(x - 5 - x - 5) = 0 Or, 2x X (-10) = 0 Or, - 20x = 0 Or, 'x' = 0/-20 = 0 

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