"+" goes in the blank.
Polynomials with rational real coefficients have irrational or complex roots in conjugate pairs. A root with a positive irrational or imaginary part will be matched by a root with a negative irrational or imaginary part.
Answer:
False
Step-by-step explanation:
I would say the answer is 7, since 21 divided by 3 is 7 and there are 1/3 as many of them