Let f(x)=4x3−2x2+1 and g(x)=x3+3x. Define h(x)=f(x)−2g(x).
a. (i) Obtain a simplified expression for h(x).
b. (ii) Determine the degree and leading coefficient of h(x).
c. (iii) Decide whether h(x) is an even function, an odd function, or neither. Give a reason for your answer.