Find the linear approximating polynomial for the following

Question

a) Find the linear approximating polynomial for the following function centered at the given point a 

b) Find the quadratic approximating polynomial for the following function centered at the given point a 

c) Use the polynomials obtained in parts a) and b) to approximate the given quantity. 

ƒ(x)=x^1/3 a=8 approximate (7.5)^1/3