If ∆ ABC ,AB= AC and angle b=50° , then angle c is equal to:a)40° b)50°c) 80°d)130°

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 *_*

X> -2 is the simplified version.