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Which of the following is not a quadrati...

Which of the following is not a quadratic equation?

A

`2(x-1)^(2) =4x^(2)-2x+1`

B

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

C

`( sqrt(2)x+ sqrt(3))^(2)+x^(2)=3x^(2)-5x`

D

`(x^(2)+2x)^(2)=x^(4)+3+4x^(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
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