A monic cubic polynomial has −2, 0, and 21 as its zeros.
a. (i) Construct this monic cubic polynomial in standard form.
b. (ii) Multiply the polynomial obtained in part (i) by 4 so that the coefficient of x3 becomes 4. Write the new polynomial explicitly.
c. (iii) Evaluate the polynomial of part (ii) at x=−1 and hence state the remainder when it is divided by (x+1).