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Mathematics 39 Online
OpenStudy (ledah):

Simplify (posting via equation editor)

OpenStudy (ledah):

\[\sqrt{144x}+\sqrt{36x}-\sqrt{25x}\]

OpenStudy (diyadiya):

First of all\[\sqrt{144}=12\]\[\sqrt{36}=6\]\[\sqrt{25}=5\]

OpenStudy (ledah):

Wow.. I feel stupid I COMPLETELY over looked that.

OpenStudy (diyadiya):

\[12\sqrt{x}+6\sqrt{x}-5\sqrt{x}\]

OpenStudy (diyadiya):

Can you do the rest?

OpenStudy (anonymous):

you can use \[\sqrt{ab}=\sqrt{a}*\sqrt{b}\] for example \[\sqrt{144x}=\sqrt{144}*\sqrt{x}=12*\sqrt{x} \]

OpenStudy (anonymous):

sorry ,Diaadiya I didn't see your post; I'll delete mine!

OpenStudy (ledah):

Could I square the radicals to get rid of them?

OpenStudy (diyadiya):

@Neemo Its not a problem :)

OpenStudy (diyadiya):

No you can't @Ledah

OpenStudy (ledah):

ah okay then.

OpenStudy (diyadiya):

Since ,your question is to simplify it and you just can't square it if it was an equation like this, you could square both sides \[\sqrt{144x}=\sqrt{25}\]

OpenStudy (diyadiya):

So what did you get as your final answer?

OpenStudy (ledah):

not sure that I did this right. that's why I'm asking :c I ended up adding the 12sqrt{x}+6sqrt{x} then subtracting the last one from it.

OpenStudy (diyadiya):

Yes! you're Right :) so what did you get ?

OpenStudy (ledah):

13 is what I ended up with.

OpenStudy (diyadiya):

You're right! don't forget the \(\sqrt{x}\)

OpenStudy (ledah):

Oh okay oopsie. Thank you :D

OpenStudy (diyadiya):

You're Welcome :)

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