A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
its says solve the euation allgebraically. Check for extraneous solutions. The equation is x + 2 = 15/x
anonymous
 5 years ago
its says solve the euation allgebraically. Check for extraneous solutions. The equation is x + 2 = 15/x

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0If we multiply by x on both sides, we get a quadratic equation that we can either factor or use the quadratic formula on. So multiplying by x on both sides gives: x^2 + 2 = 15 Then subtract by 15 on both sides to get it into a form we can factor or use the formula: x^2 + 2  15 = 0. It just so happens this one factors nicely: x^2 + 2  15 = (x + 5)(x  3) = 0 setting each factor equal to 0 gives the roots x = 5 and x = 3. Check that they do work by plugging this back into your original equation.
Ask your own question
Sign UpFind 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.