Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (anonymous):

.

OpenStudy (anonymous):

\[\sqrt{7x-1} = 5\]

OpenStudy (anonymous):

What ? Clear ???

OpenStudy (anonymous):

what?

OpenStudy (anonymous):

I think its no real solution

OpenStudy (yttrium):

Square 5, add 1 then divide by 7. :D

OpenStudy (anonymous):

i did some of it on paper

OpenStudy (anonymous):

and got x = 26/7 lol

OpenStudy (anonymous):

that probably wrong :/

OpenStudy (yttrium):

Yes. That is actually correct.

OpenStudy (anonymous):

O.O

OpenStudy (yttrium):

why do you say so?

OpenStudy (anonymous):

i donno

OpenStudy (yttrium):

\[[\sqrt{7x-1}]^2 = (5)^2\] <-- this will cancel out the sqrt sign Therefore, \[7x - 1 = 25\] Then you'll get x = 26/7

OpenStudy (yttrium):

You can also try substituting 26/7 to x and then discover whether it is equal to 5.

OpenStudy (anonymous):

oh, cool, thanks =)

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!
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!