A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0\[\ln (x)+\ln (x2)=\ln 8\]

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0then...\[\ln (x)(x2)=\ln 8\]

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0then...\[\ln (x ^{2}2x)=\ln 8\]

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0then drop the ln... \[x^{2}2x=8\]

RyanL.
 2 years ago
Best ResponseYou've already chosen the best response.0well you e^ both sides. That's how the ln cancel. But then you are left with a quadratic equation

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0split the two, \[x^{2}=8\] and \[2x=8\]

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.2u need quadratic formula

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.2Compare your quadratic equation with \(ax^2+bx+c=0\) find a,b,c then the two roots of x are: \(\huge{x=\frac{b \pm \sqrt{b^24ac}}{2a}}\)

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0okay gimme a second to work that out.

freewilly922
 2 years ago
Best ResponseYou've already chosen the best response.0*** and need to remember to check for valid values of x. if you are taking ln(x) and ln(x2) what can't x be?

RyanL.
 2 years ago
Best ResponseYou've already chosen the best response.0You can always complete the square. That's another way of solving this without the long work of using the quadratic

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0whats finishing the square? Sounds like a shortcut I was denied...

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.2shortcut only if u have some prsctice.... u wanna learn that ?

freewilly922
 2 years ago
Best ResponseYou've already chosen the best response.0... or just factor? \[x^22x8=0=(x?)(x+?)\]

Jerry123gnzcraft
 2 years ago
Best ResponseYou've already chosen the best response.0practice some more then use that form

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.2factoring is best here..

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0I'll give it a shot! :)

Jerry123gnzcraft
 2 years ago
Best ResponseYou've already chosen the best response.0go han!!!! go ku!!!! dominate the problem TEAMWORKKKK

RyanL.
 2 years ago
Best ResponseYou've already chosen the best response.0\[x^2−2x−8=0=(x−A)(x+B)\\ A*B=8\\ A+B=2\] Find A and B

RyanL.
 2 years ago
Best ResponseYou've already chosen the best response.0You have a system of question where you can simply plug in one equation to another if you can't see it right away. Then solve for the missing variable.

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.2so what are 2 values of x u got ?

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0ten solving its 4 and 2

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0and 2 would be extraneous

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.2but can x be 2 ?? think ....

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.2yes, so x is only = ?

natnatwebb
 2 years ago
Best ResponseYou've already chosen the best response.0THanks everyone! I really appreciate it! :)
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.