What will be the Perfect Square? If

The term that should be added to (4x2 + 8x) so that resulting expression be a perfect square is:

  1. 4
  2. 1
  3. 2x
  4. 2
Monis Rasool Professor Asked on 8th July 2015 in Maths.
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  • 1 Answer(s)

    Answer: (1) 4
    Explanation:-
    4X2 + 8 X + 4 = (2X + 2)2                                       [(a + b)2 = a2 + b2 + 2 ab]
    (2X + 2)2 is a perfect square.
    Thus, the answer is (1) 4.

    Anurag Mishra Professor Answered on 14th July 2015.
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