Ask
your own question, for FREE!
Mathematics
8 Online
Ok I have this math problem: 3x^2=4^2+x^2 Can you help me solve for x and show me the steps?
Still Need Help?
Join the QuestionCove community and study together with friends!
\[3x^2 = 4^2 + x^ 2\]
right? ok, so there is an x term on either side, luckily they are both the same operation on x
you should move the x terms to one side, try the getting all the x terms on the left side
ok if i did that then it would take the [x^2\] from the 3
Still Need Help?
Join the QuestionCove community and study together with friends!
right, so the left side would be 2x^2 = 4^2....
2x^2 = 4*4 = 2*2*2*2, divide both sides by 2 => x^2 = 2*2*2 => solve for x...
\[3 x ^{2} = 4^{2}+x^{2} \rightarrow 2x^{2} = 4^{2}\] Then \[ 4^{2}= 16 \rightarrow x^{2} = 8 \right arrow x = \pm 2 \sqrt{2} \]
[\4^{2} = 16 \rightarrow x^{2} = 8 \rightarrow x = +\] or \[- 2 \sqrt{2}\]
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
Twaylor:
has anyone else felt literally sick and hot after having an intense ptsd episode
Tanasia:
I just wanna ask if you guys can help me pray for my twin she is in the hospital due to gallstones she might have to get her kindey or liver removed she is
Twaylor:
how do I make my candy harder? is it the cook time, sugar amount, water amount, o
curriful:
Is there a maximum to how many emojis you can add onto a QC group? Or is it limit
zanesafoodie:
have any of you worked with a teacher that you physically just CAN'T suck it up a
Shadow:
Hello QuestionCove Users! Today we are officially announcing two promotions to our staff, @eiwoh2 (Howie) as our new Senior Moderator, and @axie as our new
Arizona:
I'm Doing the ACT testing tomorrow which I feel like I don't even want to try but my friends are making me.
Twaylor:
NASA's Artemis II will be going around the moon today at exactly 1 pm EST (right now) https://www.
6 hours ago
4 Replies
1 Medal
6 hours ago
3 Replies
0 Medals
2 days ago
2 Replies
0 Medals
2 days ago
4 Replies
2 Medals
4 days ago
3 Replies
0 Medals
6 hours ago
30 Replies
14 Medals
6 days ago
4 Replies
3 Medals
5 days ago
1 Reply
1 Medal