Ask
your own question, for FREE!
Mathematics
15 Online
OpenStudy (anonymous):
Simplify. x^2-4x-21 all over x+3
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
\[x^{2}-4x-21 = (x-7)(x+3)\]so, \[(x-7)(x+3) \div (x+3) = (x-7) \] the (x+3) cancel out leaving (x-7)
OpenStudy (anonymous):
thanks
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
VERNEISH:
Two objects are moving along separate linear paths where each path is described by position, d, and time, t.
Maci:
what are the best stock apps for people who want to start investing?
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
IzzyCookie:
|dw:1792074056138:dw| Uhm, I don't know where to ask this, but I'm in college welding at my community college, and I need help learning vertical welding for
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
VERNEISH:
Two objects are moving along separate linear paths where each path is described by position, d, and time, t.
6 hours ago
0 Replies
0 Medals
Maci:
what are the best stock apps for people who want to start investing?
3 days ago
3 Replies
2 Medals
Twaylor:
genuienly how do i get better self control i keep watcing youtube and theres this
1 week ago
3 Replies
0 Medals
IzzyCookie:
|dw:1792074056138:dw| Uhm, I don't know where to ask this, but I'm in college welding at my community college, and I need help learning vertical welding for
1 day ago
9 Replies
1 Medal
thehearken:
not sure if this is considered spam, im sorry if it is, but does anyone have tips
1 week ago
2 Replies
1 Medal