 Hi, welcome to the session. I am Deepika here. Let's discuss the question. Check whether the following is a quadratic equation. x minus 3 into 2x plus 1 is equal to x into x plus 5. Let's start the solution. Our given equation is x minus 3 into 2x plus 1 is equal to x into x plus 5 On multiplying on the left hand side we get 2x square plus x minus 6x minus 3 is equal to x square plus 5x Adding the like terms we get 2x square minus 5x minus 3 is equal to x square plus 5x Shift the terms from the right hand side to the left hand side we get 2x square minus x square minus 5x minus 5x minus 3 is equal to 0 On solving this we get x square minus 10x minus 3 is equal to 0 Given equation is of the form ax square plus bx plus c is equal to 0 Hence our answer is yes it is a quadratic equation. I hope the question is clear to you. Bye and have a nice day.