Q5 of 134 Page 4


Check whether the following equation is quadratic or not: x 2+ = 2(x ≠ 0).

Quadratic equation is an equation with degree 2.

Multiply the whole equation by x 2 , we can multiply the


The given equation will be as
x 4 – 2x 2 + 1= 0
⇒ The degree of the equation is 4
∴ (x ≠ 0) is not a quadratic equation.

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