Question

check whether the equation x²+3x+1=(x-2)² is quadratic or not​

Answer 1

Answer:

x^2+3x+1=(x-2)^2

x^2+3x+1=x^2+4-4x

x^2-x^2+3x+4x+1-4=0

7x-3=0

No it is not a quadratic equation,

because it's degree is not 2.