Question

please answer question 1 part 4 and 5​

Answer 1

Answer:

p(x) = x³+3x²+3x+1

iv) if x= 2/3

p(x) = (2/3)³ +3×(2/3)² + 3×2/3 +1

= 8/27 + 4/3 +2 +1

= 8/27 + 4/3 +3

=(8+36+81)/ 27 ...........[L.C.M is 27]

= 125/27

p(x)= 4.62

v) if x=-3/4

p(x) = (-3/4)³ + 3×(-3/4)² +3×-3/4 +1

= 27/64 + 27/16 - 9/4 +1

= ( 27+ 108 - 144 +64)/64

= 55/64

p(x)= 0.86