6.
what is a solution of the system of linear equation

slope of a line

two or more linear equations

any ordered pair in a system that makes all the equations true

Any ordered pair in a system that makes all the equations true

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 *_*