NCERT Exercise 4.1 - Q1(iii) - Quadratic Equations
Question: Check whether the following is a quadratic equation: (x - 2)(x + 1) = (x - 1)(x + 3).
Answer: No, (x - 2)(x + 1) = (x - 1)(x + 3) is not a quadratic equation.
Full step-by-step NCERT solution with diagrams on Something by Zero.