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Mathematics 18 Online
OpenStudy (anonymous):

help radical expressions

OpenStudy (anonymous):

\[x \sqrt{x+30}\]

OpenStudy (anonymous):

Solve the equation. Identify any extraneous solutions.

OpenStudy (inkyvoyd):

omg. WHATS THE OTHER SIDE?

OpenStudy (inkyvoyd):

Dude, just post out ALL of the question next time :S

OpenStudy (anonymous):

Solve the equation. Identify any extraneous solutions.!!!!!!!!!!1

OpenStudy (inkyvoyd):

You can't solve an expression. There are two sides to an equation.

OpenStudy (eyust707):

this is true

OpenStudy (anonymous):

DUH SO TELL ME NEITHER OF THESE ARE THE ANSWERS A. 6 is a solution to the original equation. The value –5 is an extraneous solution. B. 6 and 5 are both extraneous solutions. C. 5 is a solution to the original equation. The value –6 is an extraneous solution. D. 6 and –5 are solutions.

OpenStudy (eyust707):

yoou have not posted an equation

OpenStudy (eyust707):

so none of those are true

OpenStudy (inkyvoyd):

Look, I'll do your homework for you, but you need to give me an actual doable problem. There are two sides to an "equation" (note the word equal in it). Now, give me the other side, so I can solve it.

OpenStudy (eyust707):

your actually not supposed to do that either

OpenStudy (eyust707):

http://openstudy.com/code-of-conduct

OpenStudy (anonymous):

there no other side all the gave me was that

OpenStudy (inkyvoyd):

... And that's why I got subnet banned for 8 days. -.-

OpenStudy (inkyvoyd):

Can you take a picture of the problem or give a screenshot?

OpenStudy (eyust707):

daja then none of those are true.. it is not an equation so it can not be "solved"

OpenStudy (anonymous):

its actually suppose to be x= x+3o with square root ove the x and 30

OpenStudy (eyust707):

lol

OpenStudy (eyust707):

the equals sign changes a lot

OpenStudy (eyust707):

in fact it makes it an equation

OpenStudy (anonymous):

great

OpenStudy (eyust707):

\[x = \sqrt{x + 30}\]

OpenStudy (inkyvoyd):

Square both sides, simplify, and substitute back. The solutions that don't work are extraneous, and the ones that do are the solutions.

OpenStudy (eyust707):

yep

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