11+14=275 ,15+17=480,10+12=220,18+19=660,12+1 5=?

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 *_*

1.5 pounds because you put 9over 6 and then divide by 6