F(x)=(x-2)(x+4)
X-int:
Aos:
Vertex:

You have to find the angle i don’t know if i i try

You can find it by multiplying the areas it show u

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 *_*