What what is the value of the 3 in 12,532.628

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

For the inequality |c| < |d| to be true, which of the following must be true?

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30