(i) We have,

Now,

Put y = 0

= 4 - 3(0) - (0) + 5(0)

= 4 – 0 – 0 + 0

= 4

Hence,

P (0) = 4

(ii) We have,

Now,

Put y = 2

^{2 3}

=

=

=

Hence,

P (2) = 46

(iii) We have,

Now,

Put y = -1

^{2 3}

=

=

=

Hence,

p(-1) = -5