Q. 1 A3.7( 12 Votes )

Which of the following is a quadratic polynomial?

(i) 2 -x2 (ii) x+ (iii) x+ (iv) x2 +3+2

Answer :

(i) On solving the equations,



Re-writing in the format of ax2 + bx + c = 0



b = 0 & c = 2


So, following the ideal pattern of a quadratic polynomial is a quadratic polynomial.


(ii) On solving the equations,


x+


it can’t be re-written in the format of ax2 + bx + c = 0


So, following the ideal pattern of a quadratic polynomial, x+ is not a quadratic polynomial.


(iii) On solving the equations,


x+


it can’t be re-written in the format of ax2 + bx + c = 0


So, following the ideal pattern of a quadratic polynomial, x+is not a quadratic polynomial.


(iv) On solving the equations,


x2 + 3√x + 2


it can’t be re-written in the format of ax2 + bx + c = 0


So, following the ideal pattern of a quadratic polynomial, x2 + 3√x + 2 is not a quadratic polynomial.


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