If f(x) = -x² - 1, and g(x) = x + 5, then f(g(x)) = [? ]x² + [ ]x + [ ] +[ explanation please

Blossom asked Oct 14, 2023

459,872 views

10 votes

If f(x) = -x² - 1, and g(x) = x + 5, then f(g(x)) = [? ]x² + [ ]x + [ ] +[
explanation please

Blossom asked Oct 14, 2023

3.1k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

16 votes

Answer:

-x² -10x -26

Explanation:

Substitute x in f(x) with x + 5:

f(g(x)) = - (x+5)² - 1

= - (x² + 10x + 25) -1

= -x² -10x -25 -1

= -x² -10x -26

RARay answered Oct 21, 2023

by RARay

2.4k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers