Need i only need with d! i have a-c and i know that the two lines intersect at (1,5) , but i don't know how to prove it with the substitution method.

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.

You want the answer to all