Question

am i correct??

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

1 <-- i chose this!
7
-1

Answer 1

7

Answer 2

http://www.mathway.com/problem/ODU2MDM2MTM this should explain

Answer 3

@Jpenrod thank you so much! could you help me out with this question as well??

Solve (x + 1 < 5) ∩ (x - 4 > -3).


{all real numbers}
{x | 1 < x < 4}
{x | x < 4 or x > 1}

Answer 4

no clue