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Out of the following equations which one is not a quadratic equation?

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in Quadratic Equations by (34.1k points)

Out of the following equations which one is not a quadratic equation? 

(A) x2 + 4x = 11 + x2 

(B) x = 4x 

(C) 5x2 = 90 

(D) 2x – x2 = x2 + 5

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1 Answer

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by (33.5k points)

Correct answer is

(A) x2 + 4x = 11 + x2 

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