Question

plz tell the answer of both the parts
plzz

Answer 1

here g(y)=2y-1=0
2y=1
y=1/2

now put it's value in p(y)
p(1/2)=4×(1/2)♂2-12×(1/2)♂2+5×1/2-4
=1/2-6/2+5/2-4/1
take lcm
=-8/2