What is the solution set of the quadratic inequality x2 + x-220?
{xx< -2 or x2 1}
{x|x< -1 or x 2
{x|x2-2 or x< 1}
{x\x2-1 or x< 2}

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 *_*