Which of the following is a quadratic polynomial?

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

(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.