Wassup people yall got insta ? if so was yo name ?

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)