How do you work out 12 divided by 0.3 without a calculator

You can multiply both numbers by 10 so you get (12x10) / (0.3x10). This makes it easier to divide.

You can therefore do 120/3 which equals 40

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 *_*