True or False In Exercises 81 and 82, decide whetherthe statement is true or false. Justify your answer.81. It is possible for a third-degree polynomial functionwith integer coefficients to have no real zeros.82. If x = −i is a zero of the functionf(x) = x3 + ix2 + ix − 1then x = i must also be a zero of f.

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Roots

The main dissimilarity between real and complex roots is that the real roots are obtained as real numbers, in contrast with the complex roots, which are indicated as imaginary numbers. The standard format for depicting any complex number is in the form of a + bi.