Question

73.
which of the following is not a quadratic equation


2(x-1)2=4x2-2x+1


2x(x+1)=2(x+1)^{2}


2x-x^{2}=x^{2}+5


(x^{2}+2x)^{2}=x^{4}+3+4x^{3}​

Answer 1

Answer:

4 options is right

Step-by-step explanation:

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