(iii) 3y3−√5y+9 is a polynomial because the powers of variable y are non negative integers.
(iv) ax1/2+ax+9x2+4 is not a polynomial because 1/2 is the power of variable x is not a non negative integer.
(v) 3x−2+2x−1+4x+5 is not a polynomial because −2 and −1 are the powers of variable x are not non negative integers.
Question 3: Write each of the following polynomials in the standard form. Also, write their degree.
(i) x2 + 3 + 6x + 5x4
(ii) a2 + 4 + 5a6
(iii) (x3 − 1)(x3 − 4)
(iv) (y3 − 2)(y3 + 11)