Ask
your own question, for FREE!
Mathematics
20 Online
sqrt2a+9sqrt8a^3 I cant figure this one out
Still Need Help?
Join the QuestionCove community and study together with friends!
\[9 \sqrt{8 a^3}+\sqrt{2 a}\] this?
yes
\[9 \left(8 a^3\right)^{\frac{1}{2}}+(2 a)^{\frac{1}{2}}\]
\[\sqrt{8a^3}=\sqrt{4a^2\times 2a}=\sqrt{4a^2}\times \sqrt{2a}=2a\sqrt{2a}\]
\[9\sqrt{8a^3}+\sqrt{2a}=9\times2a\sqrt{2a}+\sqrt{20}=18a\sqrt{2a}+\sqrt{2a}=(18a+1)\sqrt{2a}\]
Still Need Help?
Join the QuestionCove community and study together with friends!
oops
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
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
DoltonCarlee:
So like do y'all know anything about the first world war?
thehearken:
anyone know how to explain this so its easier for me to understand? b(1)=2, b(n)=
1 hour ago
10 Replies
2 Medals
4 hours ago
1 Reply
0 Medals
6 hours ago
10 Replies
0 Medals
4 hours ago
5 Replies
0 Medals
1 day ago
10 Replies
2 Medals
3 days ago
6 Replies
1 Medal
4 days ago
0 Replies
0 Medals
4 days ago
2 Replies
1 Medal
3 days ago
2 Replies
0 Medals
3 days ago
5 Replies
2 Medals