Spell 7,258,630 in words

That is:

Seven million, two hundred and fifty eight thousand, six hundred and thirty.

seven million, two hundred and fifty eight thousand, six hundred and thirty

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 *_*