Question

X (2x+3)=x square plus 1 is a quadratic equation

Answer 1

Answer:

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

2x^2 +3x = x^2 +1

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

x^2 + 3x = 1

as u can see their are three constants and variables, hence it is not a quadratic equation