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Out of the following equations, which on...

Out of the following equations, which one is not a quadratic equation? a)`x^2+4x=11+x^2` b)`x^2=4x` c)`5x^2=90` d)`2x-x^2=x^2+5`

A

`x^(2)+4x=11+x^(2)`

B

`x^(2)=4x`

C

`5x^(2)=90`

D

`2x-x^(2)=x^(2)+5`

Text Solution

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The correct Answer is:
A
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