NCERT Exercise 4.1 - Q1(iv) - Quadratic Equations
Question: Check whether the following is a quadratic equation: (x - 3)(2x + 1) = x(x + 5).
Answer: Yes, (x - 3)(2x + 1) = x(x + 5) is a quadratic equation.
Full step-by-step NCERT solution with diagrams on Something by Zero.