**15 Points** Factor the following:
1. x²+11x+30
2. x²+22+121
3. x²+x−30
4. x²−7x−18

1. (x+5)(x+6)
2. x^2+143
3. (x-5)(x+6)
4. (x-9)(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 *_*