Ask
your own question, for FREE!
Mathematics
17 Online
solve Quadraic equations by taking the square root 1). x2 =49 2).x2=73 3). x2+5=69 Help me please
Still Need Help?
Join the QuestionCove community and study together with friends!
1). x=7 and x=-7 2). ? 3). x=8 x=-8
@blkops77 wrote:
1). x=7 and x=-7
2). ?
3). x=8 x=-8
-Assuming x2 = x^2- 1) x^2 = 49 sqrt(x^2) = sqrt(49) x = 7 2) x^2 = 73 sqrt(x^2) = sqrt(73) The sqrt of 73 is an unfactorable number and is not a perfect square, so it must remain as sqrt(73) unless you are explicitly told to estimate/round so x = sqrt(73) 3) x^2 + 5 = 69 x^2 + 5 - 5 = 69 - 5 x^2 = 64 sqrt(x^2) = sqrt(64) x = 8 --The negative values of the afformentioned x solutions also apply, as a -# * a -# = a positive #
@luigi0210 wrote:
@blkops77 wrote:
1). x=7 and x=-7
2). ?
3). x=8 x=-8
@blkops77 wrote:
simple math atleast for me, idk wha math you guys do in school or wtv
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:
why do kids nowadays be so cringy w/ relationships ex: matching pfps ex 2: "poems" ex 3: matching bf/gf names etc.
Cobrakai:
The past that was hidden, had no time to be given. The world knew your story, forever changed by the glory.
DUDEIDK1116:
my cover of sextape by deftones ( TW: my voice is kinda bad in this oneud83dude2d
XxMimiXx:
In order to subscribe, I can only do it on computer? Or can I do it on phone?
bestguy:
https://youtube.com/shorts/unKMREdCbl0?si=-RWU8UltVVL8YFH1 https://youtube.com/sh
scarlxrd0412:
what are some good song suggestions? I listen to a little bit of everything
Ferrari:
does anyone here use FL Studio? I have it but I need help starting up a career and help with the overall layout.
2 hours ago
0 Replies
0 Medals
2 days ago
5 Replies
5 Medals
12 hours ago
3 Replies
0 Medals
2 days ago
1 Reply
0 Medals
3 days ago
5 Replies
0 Medals
1 day ago
31 Replies
2 Medals
14 hours ago
3 Replies
0 Medals