Answer this pls equation 9(2j + 5j).

use mathematical properties to create two expressions that are equivalent to the expression you created

The solution is 9(7j)

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*