Help. i don't know how to solve this and i'm stuck on it lol

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

b). 4320 have a nice day

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

hope i could someone! : )