Hi everyone,

I know that it may sound like a dumb problem to solve for most of you, but I am a bit rusty and I'm doing my Calculus course remotely. In my first homework, there is a problem where I need to do this:

f(x)=(√(1-3x))/(x^3)

g(x)=x^2-x-1

(fg)(4)When I look at this, It seems impossible to me, but Mathway seems to find that the answer is 4.

I get stuck at the point where everything is now equal to (√(-11))/(64))*(11)

To me it cannot be solved, am I wrong?

Thank you to anyone who took the time to read and consider my issue.