In this exercise we have to use the concept of division to calculate how much of it is left, like this:
[tex]-27/8[/tex]
First, let's calculate the value of X from the equation given in the utterance as:
[tex]5+2x=0\\2x=-5\\x=5/2[/tex]
Substituting the found value of X into the equation we have:
[tex]x^3+3x^2+3x+1\\= (-5/2)^3+3(-5/2)^2+3(-5/2)+1\\= -125/8+75/4-15/2+1\\= (-125+150-60+8)/125\\= -27/8[/tex]
See more about division at brainly.com/question/369266
