A community for students.
Here's the question you clicked on:
 0 viewing
Hally
 3 years ago
Solve the equation. Identify any extraneous solutions.
sqrt a = 8
A. –64 is a solution of the original equation. 64 is an extraneous solution.
B. 64 is a solution of the original equation.
C. 64 is a solution of the original equation. –64 is an extraneous solution.
D. no solution <<<
Hally
 3 years ago
Solve the equation. Identify any extraneous solutions. sqrt a = 8 A. –64 is a solution of the original equation. 64 is an extraneous solution. B. 64 is a solution of the original equation. C. 64 is a solution of the original equation. –64 is an extraneous solution. D. no solution <<<

This Question is Closed

tyteen4a03
 3 years ago
Best ResponseYou've already chosen the best response.1To get rid of square roots, square both sides.

precal
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1359074224200:dwdo just like tyteen4a03 suggested

tyteen4a03
 3 years ago
Best ResponseYou've already chosen the best response.1@Hally The answer is B. Whenever you are raising a number to an even number, the negative sign disappears. (If you need proof just ask.)

Hally
 3 years ago
Best ResponseYou've already chosen the best response.0i know that part thanks! :)

precal
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1359074661681:dwquestion is, is this true?

Hally
 3 years ago
Best ResponseYou've already chosen the best response.0no. sqrt 64 = 8 and 8 is not equal to 8

precal
 3 years ago
Best ResponseYou've already chosen the best response.1then that means that the solution is extraneous

Hally
 3 years ago
Best ResponseYou've already chosen the best response.0oh. so the answer is "64 is a solution of the original equation. –64 is an extraneous solution" .... right?
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.