Mathematics
Grade10
Easy

Question

Find the solution of quadratic equation x squared plus 1 equals 1 using square roots.

  1. x equals 0
  2. x equals 1
  3. x equals 2
  4. x equals 3

The correct answer is: x equals 0


    x squared plus 1 equals 1
    Subtracting ‘1’ from both the sides,
    x squared plus 1 minus 1 equals 1 minus 1
    x squared equals 0
    Taking square root on both the sides of the equation, we get
    √ left parenthesis x squared right parenthesis equals plus-or-minus √ 0
    x equals 0

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