Question

.Evaluate -3x^3 - 4x for x = -1.

1
7
-1

(x^3, 3 is an exponent)

Answer 1

You're just going to want to replace x with the -1, it would be relatively simple if not for the multitude of minus signs..

It can be useful to use brackets, so
-3x^3-4x becomes -(3*((-1)^3))-(4*(-1))

Just remember to work from the inside out.