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Q.

Is x 2 =5   , a quadratic equation in x?


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a

The given equation is quadratic equation,

b

The given equation is not a quadratic equation,

c

Both1 and 2

d

None of these 

answer is A.

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Detailed Solution

Given is the equation x 2 =5  .
We have to find whether the equation is quadratic or not. This equation can be written as, x 2 −5=0  .
A quadratic equation can be written as of the form a x 2 +bx+c=0  .
Now, rewriting the equation x 2 −5=0   as thus, x 2 −0x−5=0  ,
 where a=1,b=0   and c=−5   are constants,
Hence the equation is Quadratic equation.
Thus, the given equation is x 2 =5  a quadratic equation.
Therefore, the correct option is 1.
 
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Is x 2 =5   , a quadratic equation in x?