Let X, Y be topological spaces, f, g : X → Y functions from X to Y , U ⊂ X an open set, and x ∈ U. Assume that f|U = g|U . Show that f is continuous at x if and only if g is continuous at x.

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 *_*