Q1 of 58 Page 106

Check whether the following are quadratic equation:

x2 + 3x + 1 = (x - 2)2

x2 + 3x + 1 = (x - 2)2

Here RHS = (x - 2)2


⇒ x2 + 4 - 4x


Equating LHS and RHS


x2 + 3x + 1 = x2 + 4 - 4x


7x - 3 = 0


Which is not of the form ax2 + bx + c = 0


∴ it is not a quadratic equation.


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