A polynomial equation has only imaginary roots and no real root. Which options CANNOT be the degree of that polynomial? (Select all that apply.)
8
6
5
9
4
7

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.