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2014-10-12T11:12:51+05:30

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√x²+4 = (x²+1)
⇒x + 4 = x² + 1
⇒ x² - x - 3 = 0
1 2 1
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thats wrong question
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means?
2014-10-12T11:18:08+05:30
√x² = x
so , x + 4 = x² + 1
it can also be written as
      x² +1 = x+ 4
      x² - x - 3 = 0
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