 Hi, welcome to the session. I am Deepika here. Let's discuss the question. Check whether the following is a quadratic equation. x square plus 3x plus 1 is equal to x minus 2 whole square. Let's start the solution. Our different equation is x square plus 3x plus 1 is equal to x minus 2 whole square. This can be rewritten in the form x square plus 3x plus 1 is equal to x square minus 4x plus 4. Again we can write this equation as x square minus x square plus 3x plus 4x plus 1 minus 4 is equal to 0 by shifting the terms from the right hand side to the left hand side. Now on cancelling the light terms we get 7x minus 3 is equal to 0. Again we can rewrite this as 0 into x square plus 7x minus 3 is equal to 0. Note here a is equal to 0. Given equation is not in the form of ax square plus bx plus c is equal to 0. Hence our answer is no, it is not a quadratic equation. I hope the question is clear to you. Bye and have a nice day.