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      Question

      l. x2 - 16x + 64 = 0 II.

      y2 = 64 In the following question two equations are given in variables 'x' and 'y' On the basis of these equations you have to decide the relation between 'x' and 'y' and give answer.
      A x < y Correct Answer Incorrect Answer
      B x > y Correct Answer Incorrect Answer
      C x=y or relationship between x and y can’t be established. Correct Answer Incorrect Answer
      D x ≥ y Correct Answer Incorrect Answer
      E x ≤ y Correct Answer Incorrect Answer

      Solution

      ATQ, From l. x2 - 16x + 64 = 0 x2 - (8+8) + 64 = 0 x2 - 8x - 8x + 64 = 0   x(x-8) - (x - 8) = 0   x - 8 = 0 or x - 8 = 0   Hence x = 8   From II: y2 = 64   Let's solve your equation step-by-step. y2 = 64 Step 1: Take square root. y = ± √64 y = 8 or y = − 8 Hence, x ≥ y

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