Ask your own question, for FREE!
Mathematics 11 Online
OpenStudy (anonymous):

Please help, medal and fan

OpenStudy (anonymous):

OpenStudy (mathstudent55):

Assuming x in nonnegative, \(\sqrt{x^2} = x\)

OpenStudy (mathstudent55):

\(x^6 = x^2 \times x^2 \times x^2\)

OpenStudy (anonymous):

true, so \[x ^{6} = x ^{3} ?\]

OpenStudy (mathstudent55):

I think you meant \(\sqrt{x^6} = x^3\) which is correct.

OpenStudy (anonymous):

yeah, thats what i meant. but then we have that 24 attached?

OpenStudy (mathstudent55):

That takes care of the x part. Now we need to take care of the number part.

OpenStudy (mathstudent55):

Can you factor 24 into a product of two numbers, one of which being a perfect square?

OpenStudy (anonymous):

since 4 is a perfect square we could split it up into \[\sqrt{4 * 6}\]

OpenStudy (anonymous):

and then, keep simplifying and we get \[2\sqrt{6}\] , right?

OpenStudy (mathstudent55):

Exactly. Now split the root into a product of roots, and take the root of 4. \(\sqrt{24} = \sqrt{4 \times6} = \sqrt 4 \sqrt6\)

OpenStudy (mathstudent55):

Correct.

OpenStudy (anonymous):

so its c?

OpenStudy (mathstudent55):

Now put it all together, the x part and the number part.

OpenStudy (mathstudent55):

Correct.

OpenStudy (anonymous):

Thanks for your help! :D

OpenStudy (mathstudent55):

You're welcome.

OpenStudy (mathstudent55):

The general idea here is to split up the radicand into a product of squares and what's left over. Then every square can have its square root taken. What is left stays inside the root.

OpenStudy (anonymous):

ok, i understand. :D

OpenStudy (mathstudent55):

Great. You're welcome.

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!